Question 1: Palette 1/288

Allen 1953 MCQ

In 1953 S. L. Miller created primitive earth conditions in the laboratory and gave experimental evidence for origin of first form of life from preexisting non-living organic molecules. The primitive earth conditions created include :

A

Low temperature, volcanic storms, atmosphere rich in oxygen

B

Low temperature, volcanic storms, reducing atmosphere

C

High temperature, volcanic storms, nonreducing atmosphere

D

High temperature, volcanic storms, reducing atmosphere containing CH₄, NH₃ etc.

Question 2: Palette 2/288

Allen MCQ

Primitive atmosphere was made up of the mixture of :

A

Oxygen, ammonia, methane, water

B

Hydrogen, ammonia, methane, oxygen

C

Hydrogen, steam, methane, ammonia

D

Oxygen, methane, water, nickle

Question 3: Palette 3/288

Allen MCQ

Which compounds were formed in the direction of the origin of life ?

A

Urea, nucleic-acid

B

Urea, amino-acid

C

Proteins, nucleic-acid

D

Protein, amino-acid

Question 4: Palette 4/288

Allen MCQ

What is most important for origin of life ?

A

Carbon

B

Oxygen

C

Water

D

Nitrogen

Question 5: Palette 5/288

Allen MCQ

Pasteur succeeded in disproving the theory of spontaneous generation because :

A

The laboratory was clean

B

He pulled out the neck of flask into a tube

C

He was lucky

D

Yeast used in flask were dead

Question 6: Palette 6/288

Allen MCQ

Now the basis of origin of life is :

A

Spontaneous generation

B

God's desire

C

Sunlight on mud

D

None of them

Question 7: Palette 7/288

Allen MCQ

Oxygen in atmosphere has been formed by:

A

Evaporation of water

B

Photosynthesis of blue green algae

C

Metabolism of microorganisms

D

Decaying organisms

Question 8: Palette 8/288

Allen MCQ

Primitive atmosphere was reducing because :

A

Hydrogen atoms were few

B

Hydrogen atoms were active and in greater number

C

Nitrogen atoms were more

D

Oxygen atoms were more

Question 9: Palette 9/288

Allen MCQ

Who called water of primitive sea as pre biotic soup ?

A

Haldane

B

Oparin

C

Fox

D

Huxley

Question 10: Palette 10/288

Allen MCQ

Oparin's theory is based on :

A

Artificial synthesis

B

Spontaneous generation

C

God's will

D

All of these

Question 11: Palette 11/288

Allen MCQ

Which biologist gave most logical biochemical theory of origin of life ?

A

Urey

B

Oparin

C

Stanley Miller

D

Haeckel

Question 12: Palette 12/288

Allen MCQ

It is believed that the first organisms which inhabitated earth's surface were :

A

Autotrophs

B

Mixotrophs

C

Heterotrophs

D

Chromatotrophs

Question 13: Palette 13/288

Allen MCQ

A compound having very important role in prebiotic evolution was :

A

SO₂

B

CH₄

C

SO₃

D

NO

Question 14: Palette 14/288

Allen MCQ

Under certain conditions scientists have obtained non-cellular structures. These are known as :

A

Microbes

B

Protists

C

Coacervates

D

Prebiotic soup

Question 15: Palette 15/288

Allen MCQ

Who did an experiment to prove that "The organic compounds were the basis of life"?

A

Darwin

B

Stanley Miller and Harold C. Urey

C

Melvin

D

Fox

Question 16: Palette 16/288

Allen MCQ

First life on earth was :-

A

Cyanobacteria

B

Chemoheterotrophs

C

Autotrophs

D

Photoautotrophs

Question 17: Palette 17/288

Allen MCQ

Which of the following is favourite idea of astronomers ?

A

Special creation theory

B

Cosmic panspermia

C

Biogenesis

D

Abiogenesis

Question 18: Palette 18/288

Allen MCQ

During chemical evolution, key biological compounds were synthesised :-

A

in the atmosphere

B

along the ocean shore

C

in the ocean

D

none of the above

Question 19: Palette 19/288

Allen MCQ

Miller and Urey performed an experiment to prove the origin of life. They took gases NH₃ and H₂ along with :

A

N₂ and H₂O

B

H₂O and CH₄

C

CH₄ and N₂

D

CO₂ and NH₃

Question 20: Palette 20/288

Allen MCQ

Abiogenesis is the :

A

Origin of life from non-living material

B

Origin of life from living organism

C

Origin of viruses and microbes

D

None

Question 21: Palette 21/288

Allen MCQ

Most modern hypothesis regarding origin of life was given by :

A

Wallace

B

Hugo de Vries

C

Oparin

D

Charles Darwin

Question 22: Palette 22/288

Allen MCQ

According to recapitulation theory which statement is correct :-

A

Development of individual metazon shown embryonic characters of ancestors.

B

Ontogeny repeats phylogeny.

C

Germplasm is immortal.

D

Every organisms is produced by its parents.

Question 23: Palette 23/288

Allen MCQ

Which of the following set has homologous organs ?

A

Hands of man, monkey and kangaroo and trunk of elephant.

B

Wings of insects, birds and bats.

C

Hind limbs of grasshopper, horse and bat

D

Mouthparts of cockroach, mosquito and honey bee.

Question 24: Palette 24/288

Allen MCQ

Who was the first to explain recapitulation theory?

A

Weismann

B

Haeckel

C

Darwin

D

Malthus

Question 25: Palette 25/288

Allen MCQ

Which of the following sets do not have homologous organs?

A

Wings of mosquito and butterfly

B

Wings of butterfly and bat

C

Mouth parts of cockroach and butter fly

D

None of them

Question 26: Palette 26/288

Allen MCQ

Wings of locust, pigeon, and bat are example of :

A

Vestigial organs

B

Analogous organs

C

Homologous organs

D

Exoskeleton

Question 27: Palette 27/288

Allen MCQ

Homology is exhibited by :

A

Wings of butterfly, birds and bat

B

Paddle of whale, forearm of horse and forelimbs of man

C

Tail of monkey and bird

D

Sting of scorpion and honey bee

Question 28: Palette 28/288

Allen MCQ

Homologous organs are :

A

Dissimilar origin and dissimilar structures

B

Dissimilar origin but similar functions

C

Similar origin with similar or dissimilar functions

D

Similar origin with dissimilar functions

Question 29: Palette 29/288

Allen MCQ

Human hand, wing of bat and flipper of whale represent

A

Analogous organs

B

Vestigial organs

C

Homologous organs

D

Evolutionary organs

Question 30: Palette 30/288

Allen MCQ

Dinosaurs disappeared during :

A

Jurassic

B

Triassic

C

Cretaceous

D

Permian

Question 31: Palette 31/288

Allen MCQ

A connecting link between reptiles and birds is:

A

Archaeopteryx

B

Platypus

C

Java ape man

D

Whale

Question 32: Palette 32/288

Allen MCQ

Evolution of heart from one to two, three and four chambered proves :-

A

Biogenetic law of Haeckel

B

Lamarckism

C

Hardy weinberg's law

D

Neo Darwinism

Question 33: Palette 33/288

Allen MCQ

Which evidence of evolution is related to Darwin's finches?

A

Evidences from biogeographical distribution

B

Evidences from vestigeal organs

C

Evidences from embryology

D

Evidences from palaeontology

Question 34: Palette 34/288

Allen MCQ

Similarities in organisms with different genotype indicate :-

A

Microevolution

B

Macroevolution

C

Convergent evolution

D

Divergent evolution

Question 35: Palette 35/288

Allen MCQ

Potato and sweet potato :—

A

have edible parts which are homologous organs.

B

have edible parts which are analogous organs.

C

have been introduced in India from the same place.

D

are two species of the same genus.

Question 36: Palette 36/288

Allen MCQ

Fossils are :

A

animals living in burrows

B

remnants of extinct animals and plants

C

floating organisms

D

fast runners

Question 37: Palette 37/288

Allen MCQ

The age of fossils is determined by :

A

analysis of bones

B

radioactive C¹4 dating

C

electron microscopy

D

weighing the fossils

Question 38: Palette 38/288

Allen MCQ

Missing link in evolution is :

A

Peripatus

B

Limulus

C

Pheretima

D

Archaeopteryx

Question 39: Palette 39/288

Allen MCQ

Convergent evolution of two species is associated with:

A

analogous organs

B

recent common ancestor

C

homologous organs

D

different habitat

Question 40: Palette 40/288

Allen MCQ

Organs which have the same fundamental structure but are different in function, are called?

A

vestigial organs

B

homologous organs

C

analogous organs

D

homoplastic organs

Question 41: Palette 41/288

Allen MCQ

Wings of insects and wings of birds are the examples of :

A

Analogy

B

Homology

C

Serology

D

Mimicry

Question 42: Palette 42/288

Allen MCQ

Flippers of seal are modified :

A

fins

B

hindlimb

C

forelimb

D

gills

Question 43: Palette 43/288

Allen MCQ

Darwin's finches are an example of :

A

Divergent evolution

B

Adaptive radiation

C

Allopatric speciation

D

All of these

Question 44: Palette 44/288

Allen MCQ

Theory of evolution is mainly concerned with:

A

Spontaneous generation

B

Theory of special creation

C

Gradual change

D

Conditions of environment

Question 45: Palette 45/288

Allen MCQ

Change with descent is the basis of which theory?

A

Recapitulation theory

B

Oparin's theory

C

Theory of organic evolution

D

Cell theory

Question 46: Palette 46/288

Allen MCQ

Name of the scientist who gave Mutation Theory:

A

Wallace

B

Malthus

C

Darwin

D

De Vries

Question 47: Palette 47/288

Allen MCQ

Darwin's Theory of Natural Selection was based on:

A

Inheritance of acquired characters

B

Mutation

C

Enormous rate of reproduction in organisms, struggle for existence and survival of the fittest

D

Changes due to the use and disuse of organs

Question 48: Palette 48/288

Allen MCQ

Snakes do not have legs because :

A

Legs are lost during their entry in tunnels

B

Legs are lost during evolution

C

The ancestors of reptiles did not have legs

D

There are no legs in lizards

Question 49: Palette 49/288

Allen MCQ

One of the revolutionary concepts in biology was Charles Darwin's 'Origin of Species'. It deals with

A

Gene mutation

B

Use and disue of organs

C

Germplasm Theory

D

Natural selection leading to the survival of the fittest

Question 50: Palette 50/288

Allen MCQ

Which of the following is responsible for evolution according to Neo-Darwinism ?

A

Mutation

B

Natural selection

C

Mutation and Natural selection

D

Either 1 or 2

Question 51: Palette 51/288

Allen MCQ

A Scientist kept 69 generations of Drosophila in darkness even after that the flies had normal eyes, this disproves the law of :

A

Synthetic theory

B

Natural selection

C

Germplasm theory

D

Acquired characters are inherited

Question 52: Palette 52/288

Allen MCQ

The ultimate source of variation is :

A

Mutation

B

Sexual reproduction

C

Natural selection

D

Hormonal action

Question 53: Palette 53/288

Allen MCQ

Which is the most important factor for evolution of new species ?

A

Geographic isolation

B

Extensive in-breeding

C

Reproductive isolation

D

Adaptation

Question 54: Palette 54/288

Allen MCQ

Gene pool is :

A

Genotype of an individual of a population

B

Different genes of all individuals of a species found in an area

C

Pool of artificially synthesised genes

D

Genes of a genus

Question 55: Palette 55/288

Allen MCQ

Which of the following evidences does not favour the Lamarckian concept ?

A

Absence of limbs in snakes

B

Presence of webbed toes in aquatic birds

C

Melanization in peppered moth in industrial area

D

Lack of pigment in cave dwelling animals

Question 56: Palette 56/288

Allen Match the Columns

Match the following columns and find correct combination :
Match Column-I with Column-II

Column-I	Column-II
(A) Darwin (B) De Vries (C) Pasteur (D) Fox	(P) Mutation theory (Q) Protobiont (R) Origin of species (S) Special Creation (T) Swan-Necked Flask Experiment

A

A = R, B = P, C = T, D = Q

B

A = P, B = Q, C = R, D = S

C

A = T, B = R, C = Q, D = P

D

A = R, B = T, C = P, D = Q

Question 57: Palette 57/288

Allen MCQ

Frequency of an allele in an isolated population may change due to :-

A

Genetic drift

B

Gene flow

C

Mutation

D

Natural selection

Question 58: Palette 58/288

Allen MCQ

There are two alleles (A₁& A₂) out of which one (A₁) has nil abundance in a population then the abundance of second allele (A₂) is

A

0.25

B

1.00

C

0.40

D

0.50

Question 59: Palette 59/288

Allen MCQ

The migration of gene in to a population from other population by interbreeding is called :-

A

Gene pool

B

Gene flow

C

Genetic drift

D

Gene erosion

Question 60: Palette 60/288

Allen MCQ

Equilibrium of gene frequencies is :-

A

$\mathsf { P } ^ { 2 } \times 2 \mathsf { P } \mathsf { q } \times \mathsf { q } ^ { 2 } = 1$

B

$\sigma = { \sqrt { \frac { \mathsf { P q } } { \mathsf { N } } } }$

C

Hardy Weinberg law

D

Mutation

Question 61: Palette 61/288

Allen MCQ

In a random mating population of 28,800 individuals, percentage of dominant homozygous individuals is 49% find out the percentage of heterozygous individuals :

A

21%

B

42%

C

32%

D

9%

Question 62: Palette 62/288

Allen MCQ

In a population that is in Hardy Weinberg equilibrium, the frequency of a recessive allele for a certain hereditary trait is 0.20. What percentage of the individual in the next generation would be expected to show the dominant trait :-

A

16%

B

32%

C

64%

D

96%

Question 63: Palette 63/288

Allen MCQ

In a random mating population frequency of disease-causing recessive allele is 80%. What would be the frequency of carrier individuals in population :-

A

64%

B

32%

C

16%

D

100%

Question 64: Palette 64/288

Allen MCQ

In a random mating population frequency of dominant allele is 0.7. What will be the frequency of recessive phenotype :—

A

0.49

B

0.09

C

0.3

D

0.21

Question 65: Palette 65/288

Allen MCQ

At a particular locus, frequency of 'A' allele is 0·6 and that of 'a' is 0·4. What would be the frequency of heterozygotes in a random mating population at equilibrium :-

A

0·24

B

0·16

C

0·48

D

0·36

Question 66: Palette 66/288

Allen MCQ

The existence within a population of nonbeneficial alleles in heterozygous genotype is:

A

genetic load

B

genetic drift

C

genetic flow

D

selection

Question 67: Palette 67/288

Allen MCQ

Some bacteria are able to grow in Streptomycin containing medium due to -

A

Natural selection

B

Induced mutation

C

Reproductive isolation

D

Genetic drift

Question 68: Palette 68/288

Allen MCQ

Which of the following is important for speciation ?

A

Seasonal isolation

B

Reproductive isolation

C

Behavioural isolation

D

Tropical isolation

Question 69: Palette 69/288

Allen MCQ

Genetic drift rapidly operates in :-

A

Small isolated population

B

Large isolated population

C

Fast reproductive population

D

Slow reproductive population

Question 70: Palette 70/288

Allen MCQ

De Vries gave his mutation theory on organic evolution while working on –

A

Oenothera lamarckiana

B

Drosophila melanogaster

C

Pisum sativum

D

Althea rosea

Question 71: Palette 71/288

Allen MCQ

Which of the following factors help in evolution but is not considered as the basic factor for evolution?

A

Isolation

B

Adaptation

C

Variation

D

Mutation

Question 72: Palette 72/288

Allen MCQ

Factors helps in the formation of new species are:

A

competition and variation

B

isolation and competition

C

competition and mutation

D

isolation and mutation

Question 73: Palette 73/288

Allen MCQ

The idea not related to the Darwinian evolutionary theory is :

A

survival of the best

B

struggle for existence

C

inheritance of acquired characters

D

origin of species by natural selection

Question 74: Palette 74/288

Allen MCQ

Inheritance of acquired characters comes from :

A

Lamarckism

B

Darwinism

C

Neo-Lemarckism

D

Neo-Darwinism

Question 75: Palette 75/288

Allen MCQ

Coverstone of theory of Darwin was :

A

natural selection

B

inheritance of acquired characters

C

omnis cellulae e cellulae

D

higher productivity

Question 76: Palette 76/288

Allen MCQ

The chance of elimination of genes from a small population is an example of :

A

selection pressure

B

speciation

C

adaptation

D

genetic drift

Question 77: Palette 77/288

Allen MCQ

The classical example of adaptive radiation is:

A

Darwin finches

B

Marsupials of Australia

C

Giant turtle

D

All of these

Question 78: Palette 78/288

Allen MCQ

Struggle for existence and survival of the fittest theories were given by :

A

Wallace

B

Darwin

C

Lamarck

D

None of these

Question 79: Palette 79/288

Allen MCQ

Which of the following is not a concept of Lamarck?

A

Environmental pressure causes variation

B

Rate and survival of organism is different due to variation

C

Inheritance of acquired character

D

If an organ is used constantly it will continuously increase its size.

Question 80: Palette 80/288

Allen MCQ

Initiating force of evolution is :

A

Variation

B

Natural selection

C

Adaptation

D

Competition

Question 81: Palette 81/288

Allen MCQ

According to the Neo-Darwinian theory which of the following is responsible for the origin of new species?

A

Mutations only

B

Useful variations and natural selection

C

Mutations together with natural selection

D

Hybridization only

Question 82: Palette 82/288

Allen MCQ

Which of the following was not given by Darwin's theory of evolution ?

A

Struggle for existence

B

Over production

C

Natural selection

D

Genetic drift

Question 83: Palette 83/288

Allen MCQ

Which primate is closest to man regarding organic evolution ?

A

Gibbon

B

Gorilla

C

Sinanthropus

D

Orangutan

Question 84: Palette 84/288

Allen MCQ

Which character applies to Homo sapiens ?

A

Opposable toe

B

Large canine

C

Cranial capacity 1450 cc

D

Chin prominence absent

Question 85: Palette 85/288

Allen MCQ

Homo erectus differed from Cro-magnon man in having :

A

Jaws protruding out

B

Tool making

C

Sloping jaws

D

Arts and paintings

Question 86: Palette 86/288

Allen MCQ

Which of the following statement is correct?

A

Proconsul was ancestor of man and ape

B

Proconsul was ancestor of man and not of ape

C

Apes were ancestor of man anatomically

D

None of them

Question 87: Palette 87/288

Allen MCQ

Most recent man found as fossil was :

A

Java man

B

Peking man

C

Cro-magnon man

D

Hiedelberg man

Question 88: Palette 88/288

Allen MCQ

What was the cranial capactiy of java man?

A

400 cc

B

650 cc

C

900 cc

D

1450 cc

Question 89: Palette 89/288

Allen MCQ

Evolution of man was possible because our ape-like ancestors :

A

Showed bipedal movement on open land

B

Used fire

C

Felt difficulty in nutrition

D

Developed community hunting

Question 90: Palette 90/288

Allen MCQ

Characteristics of primitive monkey which was in the direction of evolution of man :

A

Thumb parallel to fingers

B

32 teeth

C

Prehensile tail

D

Flat nose

Question 91: Palette 91/288

Allen MCQ

Greatest advantage of bipedal movement :

A

Fore arms becoming free for carrying out order of brain

B

Greater speed

C

Support the body properly

D

Loss of weight

Question 92: Palette 92/288

Allen MCQ

Which fossil man had cranial capacity almost equal to modern man ?

A

Australopithecus

B

Java ape man

C

Neanderthal man

D

Peking man

Question 93: Palette 93/288

Allen MCQ

Largest cranial capacity was found in :

A

Peking man

B

Neanderthal man

C

Java man

D

Cro-magnon man

Question 94: Palette 94/288

Allen MCQ

Cro-magnon man was :

A

herbivorous

B

frugivorous

C

carnivorous

D

omnivorous

Question 95: Palette 95/288

Allen MCQ

Which of the following is the most primitive ancestor of man ?

A

Homo habilis

B

Ramapithecus

C

Australopithecus

D

Homo neanderthalensis

Question 96: Palette 96/288

Allen MCQ

Homo habilis refers to :

A

Wandering species

B

Ancient man

C

Modern man

D

Tool-maker

Question 97: Palette 97/288

Allen MCQ

Which of the following statement is true ?

A

Homo erectus is direct ancestor of Homo sapiens

B

Neanderthal man is direct ancestor of modern man

C

Australopithecus is direct ancestor of modern man

D

Fossils of Cromagnon man first found in Ethopia

Question 98: Palette 98/288

Allen MCQ

Character which is closely related to human evolution-

A

Disappearance of tail

B

Reduction in size of jaws

C

Binocular vision

D

Flat nails

Question 99: Palette 99/288

Allen MCQ

Who is directly related to man ?

A

Gorilla

B

Rhesus

C

Gibbon

D

Orangutan

Question 100: Palette 100/288

Allen MCQ

Which of the following is the closer relative of man ?

A

Chimpanzee

B

Gorilla

C

Oranguttan

D

Gibbon

Question 101: Palette 101/288

Allen MCQ

Which of the following is correct order of the evolutionary history of man ?

A

Peking man, Homo sapiens, Neanderthel man, Cro-magnon man

B

Peking man, Neanderthal man, Homo sapiens, Cro-magnon man

C

Peking man, Neanderthal man, Cromagnon man, Modern man

D

Peking man, Neanderthal man, Homo sapiens, Heidelberg man

Question 102: Palette 102/288

Allen MCQ

According to fossils which are discovered up to present time, origin and evolution of man was started from which country?

A

France

B

Java

C

Africa

D

China

Question 103: Palette 103/288

Allen MCQ

The banding pattern of chromosomes of 3 and 6 of human beings and chimpanzee shows that they had:

A

common origin

B

different origin

C

same number of chromosomes

D

similar blood groups

Question 104: Palette 104/288

Allen MCQ

Which of the following ancestor of man was fond of painting and weapons making?

A

Neanderthal man

B

Cro-magnon man

C

Java man

D

Peking man

Question 105: Palette 105/288

Allen MCQ

The scientific name of Homo erectus erectus has been given to :

A

Cro-magnon man

B

Neanderthal man

C

Java man

D

Peking man

Question 106: Palette 106/288

Allen MCQ

Closest ancestor to modern man was :

A

Neanderthal man

B

Homo habilis

C

Cro-magnon man

D

Australopithecus

Question 107: Palette 107/288

Allen MCQ

The cranial capacity of Peking man was about:

A

900 cc

B

1660 cc

C

1075 cc

D

1450 cc

Question 108: Palette 108/288

Allen MCQ

Ancestor of man who first stood erect was?

A

Australopithecus

B

Cro-magnon man

C

Java man

D

Peking man

Question 109: Palette 109/288

Allen MCQ

Forelimbs of cat, lizard used in walking; forelimbs of whale used in swimming and forelimbs of bats used in flying are an example of:

A

Analogous organs

B

Adaptive radiation

C

Homologous organs

D

Convergent evolution

Question 110: Palette 110/288

Allen MCQ

Which one of the discarded are analogous structures: -

A

Wings of Bat and Wings of Pigeon.

B

Gills of Prawn and Lungs of Man.

C

Thorns of Bougainvillea and Tendrils of Cucurbita

D

Flippers of Dolphin and Legs of Horse

Question 111: Palette 111/288

Allen MCQ

In a population of 1000 individuals 360 belong to genotype AA, 480 to Aa and the remaining 160 to aa. Based on this data, the frequency of allele A in the population is :-

A

0.4

B

0.5

C

0.6

D

0.7

Question 112: Palette 112/288

Allen MCQ

Which of the following had the smallest brain capacity?

A

Homo sapiens

B

Homo neanderthalensis

C

Homo habilis

D

Homo erectus

Question 113: Palette 113/288

Allen MCQ

Which is the most common mechanism of genetic variation in the population of sexually reproducing organism?

A

Chromosomal aberrations

B

Genetic drift

C

Recombination

D

Transduction

Question 114: Palette 114/288

Allen MCQ

A population will not exist in Hardy - Weinberg equilibrium if :-

A

There are no mutations

B

There is no migration

C

The population is large

D

Individuals mate selectively

Question 115: Palette 115/288

Allen MCQ

The wings of a bird and the wings of an insect are:

A

homologous structures and represent convergent evolution

B

homologous structures and represent divergent evolution

C

analogous structures and represent convergent evolution

D

phylogenetic structures and represent divergent evolution

Question 116: Palette 116/288

Allen MCQ

Industrial melanism is an example of:

A

Neo Lamarckism

B

Neo Darwinism

C

Natural selection

D

Mutation

Question 117: Palette 117/288

Allen MCQ

Which the following are most suitable indicators of ${ \mathsf { S } } { \mathsf { O } } _ { 2 }$ pollution in the environment?

A

Fungi

B

Lichens

C

Conifers

D

Algae

Question 118: Palette 118/288

Allen MCQ

Which of the following structure is homologous to the wing of a bird?

A

Dorsal fin of a Shark

B

Wing of a Moth

C

Hind limb of Rabbit

D

Flipper of Whale

Question 119: Palette 119/288

Allen MCQ

Analogous structures are a result of: -

A

Divergent evolution

B

Convergent evolution

C

Shared ancestry

D

Stabilizing selection

Question 120: Palette 120/288

Allen MCQ

Following are the two statements regarding the origin of life: - (a) The earliest organisms that appeared on the earth were non-green and presumably anaerobes. (b) The first autotrophic organisms were the chemoautotrophs that never released oxygen. Of the above statements which one of the following options is correct?

A

(a) is correct but (b) is false.

B

(b) is correct but (a) is false.

C

Both (a) and (b) are correct.

D

Both (a) and (b) are false.

Question 121: Palette 121/288

Allen MCQ

Genetic drift operates in:

A

Non-reproductive population

B

Slow reproductive population

C

Small isolated population

D

Large isolated population

Question 122: Palette 122/288

Allen MCQ

In Hardy-Weinberg equation, the frequency of heterozygous individual is represented by:-

A

pq

B

${ \mathsf { q } } ^ { 2 }$

C

${ \mathsf p } ^ { 2 }$

D

2pq

Question 123: Palette 123/288

Allen MCQ

The chronological order of human evolution from early to the recent is: -

A

Ramapithecus → Homo habilis → Australopithecus → Homo erectus

B

Australopithecus → Homo habilis → Ramapithecus → Homo erectus

C

Australopithecus → Ramapithecus → Homo habilis → Homo erectus

D

Ramapithecus → Australopithecus → Homo habilis → Homo erectus

Question 124: Palette 124/288

Allen MCQ

Which of the following is the correct sequence of events in the origin of life? I. Formation of protobionts II. Synthesis of organic monomers III. Synthesis of organic polymers IV. Formation of DNA-based genetic systems

A

II, III, I, IV

B

II, III, IV, I

C

I, II, III, IV

D

I, III, II, IV

Question 125: Palette 125/288

Allen MCQ

Genetic drift operates in :-

A

Non-reproductive population

B

Slow reproductive population

C

Small isolated population

D

Large isolated population

Question 126: Palette 126/288

Allen MCQ

In Hardy-Weinberg equation, the frequency of heterozygous individual is represented by:-

A

pq

B

q²

C

p²

D

2pq

Question 127: Palette 127/288

Allen MCQ

Artificial selection to obtain cows yielding higher milk output represents:

A

Directional as it pushes the mean of the character in one direction

B

Disruptive as it splits the population into two, one yielding higher output and the other lower output

C

Stabilizing followed by disruptive as it stabilizes the population to produce higher yielding cows

D

Stabilizing selection as it stabilizes this character in the population

Question 128: Palette 128/288

Allen MCQ

The similarity of bone structure in the forelimbs of many vertebrates is an example of:

A

Homology

B

Analogy

C

Convergent evolution

D

Adaptive radiation

Question 129: Palette 129/288

Allen MCQ

Among the following sets of examples for divergent evolution, select the incorrect option:-

A

Forelimbs of man, bat and cheetah

B

Heart of bat, man and cheetah

C

Brain of bat, man and cheetah

D

Eye of octopus, bat and man

Question 130: Palette 130/288

Allen MCQ

According to Hugo de Vries, the mechanism of evolution is:

A

Multiple step mutations

B

Saltation

C

Phenotypic variations

D

Minor mutations

Question 131: Palette 131/288

Allen MCQ

Variations caused by mutation, as proposed by Hugo de Vries, are :

A

Random and directional

B

Random and directionless

C

Small and directional

D

Small and directionless

Question 132: Palette 132/288

Allen MCQ

In a species, the weight of new-born ranges from 2 to 5 kg. 97% of the new-born with an average weight between 3 to 3.3 kg survive whereas 99% of the infants born with weights from 2 to 2.5 kg or 4.5 to 5 kg die. Which type of selection process is taking place?

A

Directional Selection

B

Stabilizing Selection

C

Disruptive Selection

D

Cyclical Selection

Question 133: Palette 133/288

Allen Match the Columns

Match the hominids with their correct brain size:
Select the correct option.
with :

Column-I	Column-II
(A) Homo habilis (B) Homo neanderthalensis (C) Homo erectus (D) Homo sapiens	(I) 900 cc (II) 1350 cc (III) 650–800 cc (IV) 1400 cc

A

(A)−(III), (B)−(I), (C)−(IV), (D)−(II)

B

(A)−(III), (B)−(II), (C)−(I), (D)−(IV)

C

(A)−(III), (B)−(IV), (C)−(I), (D)−(II)

D

(A)−(IV), (B)−(III), (C)−(I), (D)−(II)

Question 134: Palette 134/288

Allen MCQ

A gene locus has two alleles A, a. If the frequency of dominant allele A is 0.4 then what will be the frequency of homozygous dominant, heterozygous and homozygous recessive individuals in the population ?

A

0.36 (AA); 0.48(Aa); 0.16 (aa)

B

0.16 (AA); 0.24 (Aa); 0.36 (aa)

C

0.16 (AA); 0.48 (Aa); 0.36 (aa)

D

0.16 (AA); 0.36 (Aa); 0.48 (aa)

Question 135: Palette 135/288

Allen MCQ

In Australia, marsupials and placental mammals have evolved to share many similar characteristics. This type of evolution may be referred to as:

A

Adaptive Radiation

B

Divergent Evolution

C

Cyclical Evolution

D

Convergent Evolution

Question 136: Palette 136/288

Allen MCQ

Which of the following statements is correct about the origin and evolution of men?

A

Agriculture came around 50,000 years back.

B

The Dryopithecus and Ramapithecus primates existing 15 million years ago, walked like men.

C

Homo habilis probably ate meat.

D

Neanderthal men lived in Asia between 1,00,000 and 40,000 years back.

Question 137: Palette 137/288

Allen MCQ

Embryological support for evolution was disapproved by :

A

Oparin

B

Karl Ernst von Baer

C

Alfred Wallace

D

Charles Darwin

Question 138: Palette 138/288

Allen MCQ

Flippers of Penguins and Dolphins are examples of:

A

Natural selection

B

Adaptive radiation

C

Convergent evolution

D

Industrial melanism

Question 139: Palette 139/288

Allen MCQ

From his experiments, S.L. Miller produced amino acids by mixing the following in a closed flask :

A

CH₃, H₂, NH₃ and water vapour at $60 0 ^ { \circ } C$

B

CH₄, H₂, NH₃ and water vapour at $80 0 ^ { \circ } \mathsf { C }$

C

CH₃, H₂, NH₄ and water vapour at $80 0 ^ { \circ } \mathsf { C }$

D

$\mathsf { C H } _ { 4 } , \mathsf { H } _ { 2 } , \mathsf { N H } _ { 3 }$ and water vapour at $60 0 ^ { \circ } C$

Question 140: Palette 140/288

Allen MCQ

Which of the following refer to correct example(s) of organisms which have evolved due to changes in environment brought about by anthropogenic action? (a) Darwin's Finches of Galapagos islands. (b) Herbicide resistant weeds. (c) Drug resistant eukaryotes. (d) Man-created breeds of domesticated animals like dogs.

A

Only (d)

B

Only (a)

C

(a) and (c)

D

(b), (c) and (d)

Question 141: Palette 141/288

Allen MCQ

Embryological support for evolution was proposed by :

A

Ernst Heckel

B

Karl Ernst von Baer

C

Charles Darwin

D

Alfred Wallace

Question 142: Palette 142/288

Allen MCQ

After about how many years of formation of earth, life appeared on this planet ?

A

500 billion years

B

50 million years

C

500 million years

D

50 billion years

Question 143: Palette 143/288

Allen MCQ

The phenomenon of evolution of different species in a given geographical area starting from a point and spreading to other habitats is called :-

A

Saltation

B

Co-evolution

C

Natural selection

D

Adaptive radiation

Question 144: Palette 144/288

Allen MCQ

A Hominid fossil discovered in Java in 1891, now extinct, having cranial capacity of about 900 cc was:

A

Homo erectus

B

Neanderthal man

C

Homo sapiens

D

Australopithecus

Question 145: Palette 145/288

Allen MCQ

The factor that leads to Founder effect in a population is:

A

Natural selection

B

Genetic recombination

C

Mutation

D

Genetic drift

Question 146: Palette 146/288

Allen Match the Columns

Match Column-I with Column-II. Choose the coorect answr from the options given below :
with :

Column-I	Column-II
(A) Adaptive radiation (B) Convergent evolution (C) Divergent evolution (D) Evolution by anthropogenic action	(I) Selection of resistant varieties due to excessive use of herbicides and pesticides (II) Bones of forelimbs in Man and Whale (III) Wings of Butterfly and Bird (IV) Darwin Finches

A

A-IV, B-III, C-II, D-I

B

A-III, B-II, C-I, D-IV

C

A-II, B-I, C-IV, D-III

D

A-I, B-IV, C-III, D-II

Question 147: Palette 147/288

Allen MCQ

Natural selection where more individuals acquire specific character value other than the mean character value, leads to :-

A

Directional change

B

Disruptive change

C

Random change

D

Stabilising change

Question 148: Palette 148/288

Allen MCQ

Which of the following statements is not true?

A

Sweet potato and potato is an example of analogy

B

Homology indicates common ancestry

C

Flippers of penguins and dolphins are a pair of homologous organs

D

Analogous structures are a result of convergent evolution

Question 149: Palette 149/288

Allen MCQ

Panspermia, an idea that is still a favourite for some astronomers, means :

A

Creation of life from dead and decaying matter.

B

Creation of life from chemicals.

C

Origin of sperm in human testes.

D

Transfer of spores as unit of life from other planets of Earth.

Question 150: Palette 150/288

Allen MCQ

Select the correct statement regarding mutation theory of evolution.

A

This theory was proposed by Alfred Wallace.

B

Variations are small directional changes.

C

Single step large mutation is a cause of speciation.

D

Large differences due to mutations arise gradually in a population.

Question 151: Palette 151/288

Allen MCQ

Select the correct group/set of Australian Marsupials exhibiting adaptive radiation.

A

Numbat, Spotted cuscus, Flying phalanger

B

Mole, Flying squirrel, Tasmanian tiger cat

C

Lemur, Anteater, Wolf

D

Tasmanian wolf, Bobcat, Marsupial mole

Question 152: Palette 152/288

Allen MCQ

Identify the fossil of man who showed the following characteristics. (A) Brain capacity of 1400 cc (B) Used hides to protect their body (C) Buried their dead bodies In the light of above statements, choose the correct answer from the options given below:

A

Homo erectus

B

Neanderthal man

C

Homo habilits

D

Australopithecus

Question 153: Palette 153/288

Allen MCQ

The flippers of the Penguins and Dolphins are the example of the

A

Adaptive radiation

B

Natural selection

C

Convergent evolution

D

Divergent evolution

Question 154: Palette 154/288

Allen MCQ

Given below are some stages of human evolution. Arrange them in correct sequence (Past to Recent). A. Homo habilis B. Homo sapiens C. Homo neanderthalensis D. Homo erectus Choose the correct sequence of human evolution from the options given below :-

A

D-A-C-B

B

B-A-D-C

C

C-B-D-A

D

A-D-C-B

Question 155: Palette 155/288

Allen Match the Columns

Match Column-I with Column-II.choose the correct answer from the options give below : Column-I with Column-II:

Column-I	Column-II
(A) Mesozoic Era (B) Proterozoic Era (C) Cenozoic Era (D) Paleozoic Era	(I) Lower invertebrates (II) Fish & Amphibia (III) Birds & Reptiles (IV) Mammals

A

A-II, B-I, C-III, D-IV

B

A-III, B-I, C-II, D-IV

C

A-I, B-II, C-IV, D-III

D

A-III, B-I, C-IV, D-II

Question 156: Palette 156/288

Allen Match the Columns

Match Column-I with Column-II. Choose the correct answer from the options given below :- Column-I with Column-II:

Column-I	Column-II
(A) Gene pool (B) Genetic drift (C) Gene flow (D) Gene frequency	(I) Stable within a generation (II) Change in gene frequency by chance (III) Transfer of genes into or out of population (IV) Total number of genes and their alleles

A

A-III, B-II, C-I, D-IV

B

A-IV, B-II, C-III, D-I

C

A-I, B-II, C-III, D-IV

D

A-II, B-III, C-IV, D-I

Question 157: Palette 157/288

Allen MCQ

Which evolutionary phenomenon is depicted by the sketch given figure ? 1 2 3 4

A

Artificial selection

B

Genetic drift

C

Convergent evolution

D

Adaptive radiation

Question 158: Palette 158/288

Allen Match the Columns

Match Column-I with Column-II with respect to convergent evolution. Choose the correct answer from the options given below:- Column-I with Column-II:

Column-I	Column-II
(A) Lemur (B) Bobcat (C) Ant eater (D) Flying squirrels	(I) Flying phalanger (II) Numbat (III) Spotted cuscus (IV) Tasmanian tiger cat

A

A-III, B-IV, C-II, D-I

B

A-III, B-II, C-IV, D-I

C

A-IV, B-III, C-II, D-I

D

A-IV, B-II, C-III, D-I

Question 159: Palette 159/288

Allen Match the Columns

Match Column-I with Column-II. Choose the correct answer from the options given below. Column-I with Column-II

Column-I	Column-II
(A) Living fossil (B) Connecting link (C) Vestigial organ (D) Atavism	(I) Elongated canine teeth (II) Vermiform appendix (III) Echidna (IV) Latimeria

A

A-IV, B-III, C-II, D-I

B

A-IV, B-II, C-III, D-I

C

A-IV, B-III, C-I, D-II

D

A-III, B-IV, C-I, D-II

Question 160: Palette 160/288

Allen MCQ

What is the correct order (old to recent) of periods in Paleozoic era ?

A

Silurian, Devonian, Permian, Carboniferous

B

Silurian, Devonian, Carboniferous, Permian

C

Permian, Devonian, Silurian, Carboniferous

D

Silurian, Carboniferous, Permian, Devonian

Question 161: Palette 161/288

Allen MCQ

Time gap in between formation of earth & origin of life :

A

0.5 Billion years

B

1 Billion years

C

4.5 Billion years

D

4.0 Billion years

Question 162: Palette 162/288

Allen MCQ

Who completely discarded the theory of spontaneous generation ?

A

Louis Pasteur

B

Van Helmont

C

Lazzaro spllanzani

D

Fransisco Redi

Question 163: Palette 163/288

Allen MCQ

Stanley miller observed the formation of during his experiment :

A

Nucleic Acid

B

Nucleotides

C

Amino Acid

D

Polypeptide

Question 164: Palette 164/288

Allen MCQ

First formation of life occured in :

A

Water

B

Air

C

At $80 0 ^ { \circ } \mathsf { C }$ temp.

D

In Vapour state

Question 165: Palette 165/288

Allen MCQ

Ship used by Darwin :

A

HSM Beagle

B

His Majesty service

C

HMS Beagle

D

Her Major ship

Question 166: Palette 166/288

Allen MCQ

Marsupial mole, Koala, Bandicoot & Wombat are example of :

A

Divergent evolution

B

Convergent evolution

C

Adaptive radiation

D

Both (1) and (3)

Question 167: Palette 167/288

Allen MCQ

Darwin's finches represent the phenomenon of:

A

Adaptive radiation

B

Parallel evolution

C

Convergent evolution

D

Both (1) and (2)

Question 168: Palette 168/288

Allen MCQ

Flying squirrel & flying phalanger represent the phenomenon of :

A

Divergent evolution

B

Convergent evolution

C

Adaptive radiation

D

Divergent radiation

Question 169: Palette 169/288

Allen MCQ

According to Hugo de vries speciation due to mutation is also known as 'Saltation' which means :

A

Single step variation

B

Variations at regular intervals

C

Single step large mutation

D

Huge change due to Natural selection

Question 170: Palette 170/288

Allen MCQ

In some animals of different groups different structure developed along same direction due to Adaptation to same needs this is called as:

A

Divergent evolution

B

Convergent evolution

C

Parallel evolution

D

None of these

Question 171: Palette 171/288

Allen MCQ

Presence of coelacanth fish was observed in

A

South America

B

South Africa

C

North America

D

North Africa

Question 172: Palette 172/288

Allen MCQ

Which reptile went back into water to evolve into fish like reptile ?

A

Ichthyosaurs

B

Calotes

C

Hemidactylus

D

Alligator

Question 173: Palette 173/288

Allen MCQ

The biggest land reptile was :

A

Palycosaurs

B

Calotes

C

Tyrannosaurus

D

Bangarus

Question 174: Palette 174/288

Allen MCQ

Select the true statements :

A

Ramapithecus and Dryopithecus were existing about 50 million years ago

B

Ramapithecus was man like while Dryopithecus was more ape like

C

Ramapithecus was more ape like while Dryopithecus was more man-like

D

Both (1) and (2)

Question 175: Palette 175/288

Allen MCQ

Brain capacity of Homo habilis was :

A

650-800 cc

B

800-900 cc

C

600-1000 cc

D

900-1100 cc

Question 176: Palette 176/288

Allen MCQ

Fossils of Homo erectus was discovered in :

A

Java

B

Bangladesh

C

Ethiopia

D

Tanzania

Question 177: Palette 177/288

Allen MCQ

Neanderthal man lived near :

A

East & West Africa

B

South Africa

C

North Africa

D

East & Central Asia

Question 178: Palette 178/288

Allen MCQ

Prehistoric cave art developed about :

A

10000 years ago

B

15000 years ago

C

18000 years ago

D

20000 years ago

Question 179: Palette 179/288

Allen MCQ

The story of evolution of modern man in respect to brain & language appears as :

A

Convergent evolution

B

Divergent evolution

C

Parallel evolution

D

All of above

Question 180: Palette 180/288

Allen MCQ

Branching descent is accounted for :

A

Homology

B

Analogy

C

Vestigial organs

D

Atavism

Question 181: Palette 181/288

Allen MCQ

Highest brain capacity present in :

A

Australopithecus

B

Homo habilis

C

Homo erectus

D

Neanderthal

Question 182: Palette 182/288

Allen MCQ

Agriculture & Human settlement started about :

A

10000 years back

B

20000 years back

C

30000 years back

D

40000 years back

Question 183: Palette 183/288

Allen MCQ

Who proposed the first form of life from pre-existing non-living organic molecules ?

A

Oparin & Haldane

B

Stanley Miller & Harold Urey

C

Lamark & Darwin

D

Hugo De Vries & Dobzhansky

Question 184: Palette 184/288

Allen MCQ

In the experiment of Stanley Miller the temp. of water vapour was :

A

$1 2 0 0 ^ { \circ } \mathsf C$

B

1000℃

C

$80 0 ^ { \circ } \mathsf { C }$

D

$1 5 0 0 ^ { \circ } \mathsf C$

Question 185: Palette 185/288

Allen MCQ

Darwin finches differ with each other on the basis of :

A

Feather

B

Beak

C

Colour of eye

D

Body colour

Question 186: Palette 186/288

Allen MCQ

Evolution is :

A

Determinism

B

Chance

C

Both (1) and (2)

D

None

Question 187: Palette 187/288

Allen MCQ

Darwin's finches represent :

A

Adaptive radiation

B

Divergent evolution

C

Both (1) and (2)

D

Parallel evolution

Question 188: Palette 188/288

Allen MCQ

Hugo de Vries worked on :

A

Oenothera lamarckiana

B

Lathyrus odoratus

C

Pisum sativum

D

Arachis hypogea

Question 189: Palette 189/288

Allen MCQ

Select the incorrect statements :

A

Natural selection is a heritable variation & by reproduction leave greater number of progemy.

B

During stabilisation of natural selection more individuals acquire value other than mean character value.

C

By the time of 500 million years ago invertebrates were formed and were active.

D

Reptiles lay thick shelled eggs which do not dry up in sun unlike those of Amphibians.

Question 190: Palette 190/288

Allen Match the Columns

Match the columns :
with :

Column-I	Column-II
(A) Australopithecus (B) Homo habilis (C) Homo erectus (D) Neanderthal man (E) Homo sapiens	(I) First human like (II) Used hides to protect the body (III) Arose in Africa (IV) Probably ate meat (V) Hunted with stone weapons and ate fruits

A

A-V, B-II, C-IV, D-I, E-III

B

A-I, B-II, C-IV, D-III, E-V

C

A-V, B-I, C-IV, D-II, E-III

D

A-V, B-II, C-III, D-I, E-IV

Question 191: Palette 191/288

Allen MCQ

Which of the following is used as an atmospheric pollution indicator?

A

Lepidoptera

B

Lichens

C

Lycopersicon

D

Lycopodium

Question 192: Palette 192/288

Allen MCQ

The theory of spontaneous generation stated that:

A

Life arose from living forms only.

B

Life can arise from both living and nonliving.

C

Life can arise from non-living things only

D

Life arises spontaneously, neither from living nor from the non-living.

Question 193: Palette 193/288

Allen MCQ

Animal husbandry and plant breeding programmes are the examples of :

A

Reverse evolution

B

Artificial selection

C

Mutation

D

Natural selection

Question 194: Palette 194/288

Allen MCQ

Palaentological evidences for evolution refers to the :

A

Development of embryo

B

Homologous organs

C

Fossils

D

Analogous organs.

Question 195: Palette 195/288

Allen MCQ

The bones of forelimbs of whale, bat, cheetah and man are similar in structure, because :

A

One organism has given rise to another

B

They share a common ancestor

C

They perform the same function

D

They have biochemical similarities

Question 196: Palette 196/288

Allen MCQ

Analogous organs arise due to :

A

Divergent evolution

B

Artificial selection

C

Genetic drift

D

Convergent evolution

Question 197: Palette 197/288

Allen MCQ

(p+q)² = p² + 2pq + q² = 1 represents an equation used in :

A

Population genetics

B

Mendelian genetics

C

Biometrics

D

Molecular genetics

Question 198: Palette 198/288

Allen MCQ

Appearance of antibiotic-resistant bacteria is an example of:

A

Adaptive radiation

B

Transduction

C

Pre-existing variation in the population

D

Divergent evolution

Question 199: Palette 199/288

Allen MCQ

Evolution of life shows that life forms had a trend of moving from:

A

Land to water

B

Dry land to wet land

C

Fresh water to sea water

D

Water to land

Question 200: Palette 200/288

Allen MCQ

Viviparity is considered to be more evolved because :

A

The young ones are left on their own.

B

The young ones are protected by a thick shell.

C

The young ones are protected inside the mother's body and are looked after they are born leading to more chances of survival.

D

The embryo takes a long time to develop

Question 201: Palette 201/288

Allen MCQ

Fossils are generally found in :

A

Sedimentary rocks

B

Igneous rocks

C

Metamorphic rocks

D

Any type of rock

Question 202: Palette 202/288

Allen MCQ

Which type of selection is industrial melanism observed in moth, Biston betularia?

A

Stabilising

B

Directional

C

Disruptive

D

Artificial

Question 203: Palette 203/288

Allen MCQ

The most accepted line of descent in human evolution is :

A

Australopithecus → Ramapithecus → Homo sapiens → homo habilis

B

Homo erectus → Homo habilis → Homo sapiens

C

Ramapithecus → Homo habilis → Homo erectus → Homo sapiens

D

Australopithecus → Ramapithecus → Homo erectus → Homo habilis → Homo sapiens

Question 204: Palette 204/288

Allen MCQ

Match the scientists listed under column-I with ideas listed column-II.
with :

Column-I	Column-II
(P) Darwin (Q) Oparin (R) Lamarck (S) De-Vries	(I) Abiogenesis (II) Use and disuse of organs (III) Mutation theory (IV) Evolution by natural selection

A

P-I Q-IV; R-II; S-III

B

P-IV; Q-I; R-II; S-III

C

P-II; Q-IV; R-III; S-I

D

P-IV; Q-II; R-II; S-I

Question 205: Palette 205/288

Allen MCQ

Variations during mutations of meiotic recombination are :

A

Random and directionless

B

Random and directional

C

Random and small

D

Random, small and directional

Question 206: Palette 206/288

Allen MCQ

The naturalist who came about with the same ideas that of the Darwin :

A

Alfred Nobel

B

Alfred Wallace

C

Lamarck

D

H. Khorana

Question 207: Palette 207/288

Allen MCQ

According to Darwin, the term fitness refers to:

A

Social fitness

B

Mental fitness

C

Physical fitness

D

Reproductive fitness

Question 208: Palette 208/288

Allen MCQ

Dead remains of organisms found in the earth crust are the :

A

Palaentological evidences

B

Morphological evidences

C

Anatomical evidences

D

Physiological evidences

Question 209: Palette 209/288

Allen MCQ

When more than one adaptive radiations appear in an isolated geographical area, than it is called ?

A

Natural selection

B

Convergent evolution

C

Divergent evolution

D

Retrogressive evolution

Question 210: Palette 210/288

Allen MCQ

Who gave the theory of Genetic equilibrium

A

Lamarck

B

Hugo DeVries

C

Hardy - Weinberg

D

Darwin

Question 211: Palette 211/288

Allen MCQ

Giraffe's neck and forelimbs get elongated during the course of evolution, due to :

A

Inheritance of acquired characters

B

Natural selection

C

Geographical isolation

D

Convergent evolution

Question 212: Palette 212/288

Allen MCQ

First mammals were :

A

Human

B

Apes

C

Monkeys

D

Shrews

Question 213: Palette 213/288

Allen MCQ

The first human being like prehistoric man was:

A

Homo sapiens

B

Homo erectus

C

Homo habilis

D

Neanderthal man

Question 214: Palette 214/288

Allen MCQ

In which type of natural selection two peaks are formed ?

A

Stabilizing selection

B

Directional selection

C

Disruptive selection

D

Both (1) & (3)

Question 215: Palette 215/288

Allen MCQ

Which of the following statement is correct?

A

The skull of adult chimpanzee is like modern adult human

B

The skull of baby chimpanzee is like modern adult human

C

Skull of baby chimpanzee is exactly similar to adult chimpanzee

D

Skull of baby chimpanzee and adult chimpanzee has no resemblance to skull of human

Question 216: Palette 216/288

Allen MCQ

Which of the following is not amongst the evolutionary line of mammals?

A

Therapsids

B

Pelycosaurs

C

Synapsids

D

Sauropsids

Question 217: Palette 217/288

Allen MCQ

Before industrialization set in England :

A

Only white winged moths were present on trees

B

White winged moths were less in number on trees

C

Dark winged moths were less in number on trees

D

White winged moths were absent

Question 218: Palette 218/288

Allen MCQ

Proper burial of dead bodies for the first time started by which pre historic man ?

A

Java man

B

Homo habilis

C

Neanderthal man

D

Australopithecines

Question 219: Palette 219/288

Allen MCQ

Homo sapiens arose in ________and moved across continents and developed into distinct races :

A

America

B

Australia

C

China

D

Africa

Question 220: Palette 220/288

Allen MCQ

Who lived in near east and central Asia between 1,00,000 - 40,000 years back?

A

Homo erectus

B

Homo habilis

C

Neanderthal man

D

Australopithecines

Question 221: Palette 221/288

Allen MCQ

How many of the following are examples of homologous structures in plants : (a) Eyes of octopus and mammal (b) Potato and sweet potato (c) Forelimbs of whale, bat, cheetah and human (d) Vertebrate heart (e) Thorn of bougainvillea and tendril of cucurbita (f) Potato and carrot (g) Potato and radish Options:

A

Four

B

Three

C

Two

D

One

Question 222: Palette 222/288

Allen MCQ

The most accepted view for origin of life is :

A

Chemical evolution

B

Spontaneous generation

C

Religious literature

D

Panspermia

Question 223: Palette 223/288

Allen MCQ

The study of fossils in different aged rocks shows all of the following except :

A

They probably died during the formation of that particular sediment

B

Some of them appear similar to modern organisms

C

Life forms varied over time and certain forms were restricted to certain geological time spans

D

They do not represent extinct organisms

Question 224: Palette 224/288

Allen MCQ

Which vertebrates evolved into the first amphibians?

A

Jawless fishes

B

Lobefins

C

Salamanders

D

Ichthyosaurus

Question 225: Palette 225/288

Allen MCQ

When reptiles came down which animals took over the earth ?

A

Birds

B

Dinosaurs

C

Mammals

D

Amphibians

Question 226: Palette 226/288

Allen MCQ

Forelimbs of whale, bat, cheetah and human do not show a. Similarities in the pattern of bones b. Adaptive radiation c. Analogous organs d. Convergent evolution e. Divergent evolution f. Different structures evolving for same functions

A

a, b and c

B

c, d and f

C

a and d

D

a, d and c

Question 227: Palette 227/288

Allen MCQ

Therapsids were evolved into -

A

Dinosaurs

B

Reptiles

C

Birds

D

Mammals

Question 228: Palette 228/288

Allen MCQ

Believers of spontaneous generation theory believed that :

A

Life originated from other similar organisms or spontaneously

B

Life originated only spontaneously

C

Life originated from similar organisms

D

Life originated from air

Question 229: Palette 229/288

Allen MCQ

Fossilization can occur where :

A

Animals are buried and preserved by natural process

B

Animals are destroyed by scavangers

C

Animals are eaten by predators

D

Animals are destroyed by environmental conditions

Question 230: Palette 230/288

Allen MCQ

What is sequence in the evolution of mammals?

A

Fish-amphibian-bird-mammals

B

Insect-fish bird-mammals

C

Fish-amphibian-reptile-mammals

D

Fish-amphibian-reptile-bird-mammals

Question 231: Palette 231/288

Allen MCQ

There would be no evolution if :

A

The inheritance of acquired characters did not take place

B

Somatic variations were not inheritable

C

Gene variations were not found among members of population

D

Somatic variations would not transform into germinal variations

Question 232: Palette 232/288

Allen MCQ

If population of a species is transferred to more suitable environment then it will show:

A

Protection against enemies

B

More individuals would survive

C

Rate of reproduction increases

D

Unlimited food would be available

Question 233: Palette 233/288

Allen MCQ

Which of the following facts develop suspicions in Lamarckism ?

A

Human females are not born with bored ear pinna although they have been bored for thousands of years.

B

Giraffe has long neck to eat leaves of tall trees

C

A stag can run fast to protect against the enemies

D

None of them

Question 234: Palette 234/288

Allen MCQ

Chances of inheritable and evolutionary changes are more in such species which reproduce by :

A

Parthenogenesis

B

Fission

C

Sexual reproduction

D

Asexual reproduction

Question 235: Palette 235/288

Allen MCQ

One major criticism of Darwin's theory is that:

A

It presumes that environment upon earth has been changing through ages

B

It does not explain variations with heredity

C

It overestimates reproductive capacity of animals and plants

D

It does not explain vestigeal organs

Question 236: Palette 236/288

Allen MCQ

Use of atomic bombs may lead to abnormalities even in upcoming generations because of :

A

Body changes

B

Air pollution

C

Changed atoms in atmosphere

D

Genetic mutation

Question 237: Palette 237/288

Allen MCQ

On Galapagos island Darwin observed variation in beaks of birds (Darwin's finches) and he concluded :

A

Interspecies variation

B

Intraspecies variation

C

Natural selection according to food

D

Inheritance of acquired characters

Question 238: Palette 238/288

Allen MCQ

Homologous organs are :-

A

Wings of cockroach and wings of bats

B

Wings of insects and wings of birds.

C

Eye of the octopus and of mammals

D

Pectoral fins of fishes and forelimbs of horse.

Question 239: Palette 239/288

Allen MCQ

Original idea of survival of fittest was of :-

A

Herbert Spencer

B

Darwin

C

Wallace

D

None of these

Question 240: Palette 240/288

Allen MCQ

Fore coming generations are less adaptive than their parental generation due to :-

A

Natural selection

B

Mutation

C

Genetic drift

D

Adaptation

Question 241: Palette 241/288

Allen MCQ

Which of the following are homologous organs?

A

Wings of birds & Locust

B

Wings of birds (Sparrow)& Pectoral fins of fish

C

Wings of bat & Butterfly

D

Legs of frog & Cockroach

Question 242: Palette 242/288

Allen MCQ

Convergent evolution is illustrated by :-

A

Rat and dog

B

Bacterium and protozoan

C

Starfish and cuttle fish

D

Dogfish and whale

Question 243: Palette 243/288

Allen MCQ

Which one of the following sequences was proposed by Darwin and Wallace for organic evolution ?

A

Overproduction, variations, constancy of population size, natural selection

B

Variations, constancy of population size, overproduction, natural selection

C

Overproduction, constancy of population size, variations, natural selection

D

Variations, natural selection, overproduction, constancy of population size

Question 244: Palette 244/288

Allen MCQ

Industrial melanism is an example of :

A

Drug resistance

B

Darkening of skin due to smoke from industries

C

Protective resemblance with the surroundings

D

Defensive adaptation of skin against ultraviolet radiations

Question 245: Palette 245/288

Allen MCQ

Darwin in his 'Natural Selection Theory' did not believe in any role of which one of the following in organic evolution :-

A

Parasites and predators as natural enemies

B

Survival of the fittest

C

Struggle for existence

D

Discontinuous variations

Question 246: Palette 246/288

Allen MCQ

Which one of the following describes correctly the homologous structures ?

A

Organs with anatomical similarities, but performing different functions

B

Organs with anatomical dissimilarities, but performing same function

C

Organs that have no function now, but had an important function in ancestors

D

Organs appearing only in embryonic stage and disappearing later in the adult

Question 247: Palette 247/288

Allen MCQ

What kind of evidence suggested that man is more closely related with chimpanzee than with other hominoid apes ?

A

Comparison chromosomes morphology only

B

Evidence from fossil remains and the fossil mitochondrial DNA alone

C

Evidence from DNA extracted from sex chromosomes, autosomes & mitochondria

D

Evidence from DNA from sex chromosomes only

Question 248: Palette 248/288

Allen MCQ

Age of fossils in the past was generally determined by radio-carbon method and other methods involving radioactive elements found in the rocks. More precise methods, which were used recently and led to the revision of the evolutionary periods for different groups of organisms include :

A

Study of the conditions of fossilization

B

Electron spin resonance (ESR) & fossil DNA

C

Study of carbohydrates/proteins in rocks

D

Study of carbohydrates/proteins in fossils

Question 249: Palette 249/288

Allen MCQ

Presence of gills in the tadpole of frog indicates that :-

A

Fishes evolved from frog like ancestors

B

Frogs will have gills in future

C

Frogs evolved from gilled ancestors

D

Fishes were amphibious in the past

Question 250: Palette 250/288

Allen MCQ

Being all mammals, whales, dolphins, bat, monkey and horse have some common characters but they also show conspicuous differences. This is due to phenomenon of :-

A

Normalisation

B

Genetic drift

C

Divergence

D

Convergence

Question 251: Palette 251/288

Allen MCQ

Which one of the following phenomenon supports Darwin's concept of natural selection in organic evolution ?

A

Production of 'Dolly', the sheep by cloning

B

Development of organs from 'stem cells' for organ transplantation

C

Development of transgenic animals

D

Prevalence of pesticide resistant insects

Question 252: Palette 252/288

Allen MCQ

Man who firstly believed in immortality of soul was ?

A

Neanderthal man

B

Cro-Magnon

C

Java man

D

Peking man

Question 253: Palette 253/288

Allen MCQ

Which of the following is not true for a species?

A

Members of a species can interbreed.

B

Variations occur among members of a species.

C

Gene flow does not occur between the populations of a species.

D

Each species is reproductively isolated from every other species.

Question 254: Palette 254/288

Allen MCQ

In evolution the studies can be made at molecular level. For example the protein present in the blood of man and ape are similar. The base sequence in nucleic acids and amino acids sequence in protein in related organism is alike. These are the examples which one specifically referred to in:

A

Convergent evolution

B

Molecular analogy

C

Molecular homology

D

Homoplastic appearance

Question 255: Palette 255/288

Allen MCQ

Which of the following statement is incorrect?

A

Life processes are consequences of reactions that occur in an organism

B

Living organism are made of inorganic and organic compounds.

C

Life comes from pre-existing life

D

Genes are not responsible for the stability or changeability of species

Question 256: Palette 256/288

Allen MCQ

Select the correct statement from the following :-

A

Darwinian variations are small and directionless.

B

Fitness is the end result of the ability to adapt and gets selected by nature.

C

All mammals except whales and camels have seven cervical vertebrae.

D

Mutations are random and directional.

Question 257: Palette 257/288

Allen MCQ

Which of the following are not analogous organs ?

A

Fins of fishes and flippers of whales

B

Stings of honey bee and scorpion

C

Thorn of bougainvillea and tendril of Cucurbita

D

Wings of insect and wings of bird

Question 258: Palette 258/288

Allen MCQ

Which one of the following amino acid was not found to be synthesized in Miller's experiment-

A

Glycine

B

Aspartic acid

C

Glutamic acid

D

Alanine

Question 259: Palette 259/288

Allen MCQ

An important evidence in favour of organic evolution is the occurrence of –

A

Homologous and vestigial organs

B

Analogous and vestigial organs

C

Homologous organs only

D

Homologous and analogous organs

Question 260: Palette 260/288

Allen MCQ

Evolutionary history of an organism is known as:

A

Phylogeny

B

Ancestry

C

Paleontology

D

Ontogeny

Question 261: Palette 261/288

Allen MCQ

Sickle cell anemia has not been eliminated from the African population because –

A

it is controlled by recessive genes

B

it is not a fatal disease

C

it provides immunity against malaria

D

it is controlled by dominant genes

Question 262: Palette 262/288

Allen MCQ

One of the important consequences of geographical isolation is :-

A

no change in the isolated fauna

B

preventing Speciation

C

speciation through reproductive isolation

D

random creation of new species

Question 263: Palette 263/288

Allen MCQ

Among the human ancestors the brain size was more than 1000 CC in: -

A

Homo neanderthalensis

B

Homo erectus

C

Ramapithecus

D

Homo habilis

Question 264: Palette 264/288

Allen MCQ

Two plants can be conclusively said to belong to the same species if they: -

A

can reproduce freely with each other and form seeds.

B

have more than 90 percent similar genes.

C

look similar and possess identical secondary metabolites.

D

have same number of chromosomes.

Question 265: Palette 265/288

Allen MCQ

The Finches of Galapagos islands provide an evidence in favour of: -

A

Special Creation

B

Evolution due to Mutation

C

Retrogressive Evolution

D

Biogeographical Evolution

Question 266: Palette 266/288

Allen MCQ

What is common to whale, seal and shark :-

A

Seasonal migration

B

Thick subcutaneous fat

C

Convergent evolution

D

Homoiothermy

Question 267: Palette 267/288

Allen MCQ

Adaptive radiation refers to: -

A

Adaptations due to Geographical isolation.

B

Evolution of different species from a common ancestor.

C

Migration of members of a species to different geographical areas.

D

Power of adaptation in an individual to a variety of environments.

Question 268: Palette 268/288

Allen MCQ

When two species of different genealogy come to resemble each other as a result of adaptation, the phenomenon is termed :-

A

Divergent evolution

B

Microevolution

C

Co-evolution

D

Convergent evolution

Question 269: Palette 269/288

Allen MCQ

The concept of chemical evolution is based on:

A

Crystallization of chemicals

B

Interaction of water, air and clay under intense heat

C

Effect of solar radiation on chemicals

D

Possible origin of life by combination of chemicals under suitable environmental conditions

Question 270: Palette 270/288

Allen MCQ

Industrial melanism as observed in peppered moth proves that:

A

The true black melanic forms arise by a recurring random mutation.

B

The melanic form of the moth has no selective advantage over lighter form in industrial area.

C

The lighter-form moth has no selective advantage either in polluted industrial area or non-polluted area.

D

Melanism is pollution-generated feature.

Question 271: Palette 271/288

Allen MCQ

Which one of the following statements is correct: -

A

Stem cells are specialized cells

B

There is no evidence of the existence of gills during embryogenesis of mammals

C

All plant and animal cells are totipotent

D

Ontogeny repeats phylogeny

Question 272: Palette 272/288

Allen MCQ

Which one of the following is incorrect about the characteristics of protobionts (coacervates and microspheres) as envisaged in the abiogenic origin of life?

A

They were partially isolated from the surroundings.

B

They could maintain an internal environment.

C

They were able to reproduce.

D

They could separate combinations of molecules from the surroundings.

Question 273: Palette 273/288

Allen MCQ

Which one of the following scientist's name is correctly matched with the theory put forth by him?

A

de Vries – Natural selection

B

Mendel – Theory of pangenesis

C

Weismann – Theory of continuity of Germplasm

D

Pasteur - Inheritance of acquired characters

Question 274: Palette 274/288

Allen MCQ

In the case of peppered moth (Biston betularia) the black-coloured form became dominant over the light-coloured form in England during industrial revolution. This is an example of:-

A

Inheritance of darker colour character acquired due to the darker environment

B

Natural selection whereby the darker forms were selected.

C

Appearance of the darker coloured individuals due to very poor sunlight.

D

Protective mimicry.

Question 275: Palette 275/288

Allen MCQ

Darwin's finches are a good example of

A

Convergent evolution

B

Industrial melanism

C

Connecting link

D

Adaptive radiation

Question 276: Palette 276/288

Allen MCQ

The most apparent change during the evolutionary history of Homo sapiens is traced in: -

A

Walking upright

B

Shortening of jaws

C

Remarkable increase in the brain size

D

Loss of body hair

Question 277: Palette 277/288

Allen MCQ

Given below are four statements (A-D) each with one or two blanks. Select the option which correctly fills up the blanks in two statements:
Statements:
(A) Wings of butterfly and birds look alike and are the results of ________(i)________ evolution
(B) Miller showed that CH₄, H₂, NH₃ and ________(i)________, when exposed to electric discharge in flask resulted in formation of______(ii)______
(C) Vermiform appendix is a ______(i)________organ and an ______(ii)________evidence of evolution.
(D) According to Darwin evolution took place due to _____(i)______ and________
(ii)________of the fittest.

A

(A) − (i) convergent (B) – (i) oxygen, (ii) nucleosides

B

(B) – (i) water vapour, (ii) amino acids, (C) – (i) rudimentary (ii) chemical

C

(C) – (i) vestigial, (ii) anatomical, (D) – (i) mutations, (ii) multiplication

D

(D) – (i) small variations, (ii) survival, (A) – (i) convergent

Question 278: Palette 278/288

Allen MCQ

What was the most significant trend in the evolution of modern man (Homo sapiens) from his ancestors?

A

Upright posture

B

Shortening of jaws

C

Binocular vision

D

Increasing brain capacity

Question 279: Palette 279/288

Allen MCQ

Evolution of different species in a given area starting from a point and spreading to other geographical areas is known as: -

A

Migration

B

Divergent evolution

C

Adaptive radiation

D

Natural selection

Question 280: Palette 280/288

Allen MCQ

What was the most significant trend in the evolution of modern man (Homo sapiens) from his ancestors?

A

Increasing cranial capacity

B

Upright posture

C

Shortening of jaws

D

Binocular vision

Question 281: Palette 281/288

Allen MCQ

The extinct human who lived 1,00,000 to 40,000 years ago, in Europe, Asia and parts of Africa, with short stature, heavy eye brows, retreating fore heads, large jaws with heavy teeth, stocky bodies, a lumbering gait and stooped posture was :-

A

Cro-Magnons humans

B

Ramapithecus

C

Homo habilis

D

Neanderthal human

Question 282: Palette 282/288

Allen MCQ

Which one of the following options gives one correct example each of convergent evolution and divergent evolution?

A

Convergent evolution-Bones of forelimbs of vertebrates, Divergent evolution-Wings of butterfly and birds

B

Convergent evolution-Thorns of Bougainvillea and tendrils of Cucurbita, Divergent evolution-Eyes of Octopus and Mammals

C

Convergent evolution-Eyes of octopus and mammals, Divergent evolution-Bones of forelimbs of vertebrates

D

Convergent evolution-Thorns of Bougainvillea and tendrils of Cucurbita ,Divergent evolution-Wings of butterflies and birds

Question 283: Palette 283/288

Allen MCQ

The idea of mutations was brought forth by:

A

Hardy Weinberg, who worked on allele frequencies in a population

B

Charles Darwin, who observed a wide variety of organisms during sea voyage

C

Hugo do Vries, who worked on evening primrose

D

Gregor Mendel, who worked on Pisum sativum

Question 284: Palette 284/288

Allen MCQ

The eye of octopus and eye of cat show different patterns of structure, yet they perform similar function. This is an example of:

A

Analogous organs that have evolved due to divergent evolution.

B

Homologous organs that have evolved due to convergent evolution.

C

Homologous organs that have evolved due to divergent evolution.

D

Analogous organs that have evolved due to convergent evolution.

Question 285: Palette 285/288

Allen MCQ

The tendency of population to remain in genetic equilibrium may be disturbed by:

A

lack of random mating

B

random mating

C

lack of migration

D

lack of mutations

Question 286: Palette 286/288

Allen MCQ

The process by which organisms with different evolutionary history evolve similar phenotypic adaptation in response to a common environmental challenge, is called:

A

Adaptive radiation

B

Natural selection

C

Convergent evolution

D

Non-random evolution

Question 287: Palette 287/288

Allen MCQ

According to Darwin, the organic evolution is due to:

A

Reduced feeding efficiency in one species due to the presence of interfering species

B

Intraspecific competition

C

Interspecific competition

D

Competition within closely related species

Question 288: Palette 288/288

Allen MCQ

Variation in gene frequencies within populations can occur by chance rather than by natural selection. This is referred to as:

A

Genetic load

B

Genetic flow

C

Genetic drift

D

Random mating