Question 1: Palette 1/131

NEET 2026 MCQ

Which of the following is not an example of convergent evolution?

A

Flippers of penguins and dolphins

B

Eyes of octopuses and mammals

C

Fore limbs of whales and bats

D

Wings of butterflies and birds

Question 2: Palette 2/131

NEET 2026 MCQ

$ \text { Match List I with List II with respect to chronology of evolution of life forms } $

List-I		List-II
A.	About 65 mya	I.	Jawless fish probably evolved
B.	About 500 mya	II.	The dinosaurs suddenly disappeared from the earth
C.	About 350 mya	III.	Seaweeds and few plants probably existed
D.	About 320 mya	IV.	Invertebrates were formed and became active

Choose the correct answer from the options given below:

A

$\mathrm{A}(\mathrm{III}), \mathrm{B}(\mathrm{IV}), \mathrm{C}(\mathrm{I}), \mathrm{D}(\mathrm{II})$

B

$\mathrm{A}(\mathrm{I}), \mathrm{B}(\mathrm{II}), \mathrm{C}(\mathrm{III}), \mathrm{D}(\mathrm{IV})$

C

$\mathrm{A}(\mathrm{II}), \mathrm{B}(\mathrm{IV}), \mathrm{C}(\mathrm{III}), \mathrm{D}(\mathrm{I})$

D

$\mathrm{A}(\mathrm{II}), \mathrm{B}(\mathrm{IV}), \mathrm{C}(\mathrm{I}), \mathrm{D}(\mathrm{III})$

Question 3: Palette 3/131

NEET 2026 MCQ

Evolution of human appears parallel to the progressive development of brain and language skills. As such, the evolution of individual species in the sequence of their appearance is:

A

Ramapithecus → Homo habilis → Homo erectus → Neanderthal → Homo sapiens

B

Homo sapiens → Ramapithecus → Homo habilis → Neanderthal → Homo erectus

C

Homo habilis → Homo erectus → Ramapithecus → Neanderthal → Homo sapiens

D

Neanderthal → Ramapithecus → Homo habilis → Homo erectus → Homo sapiens

Question 4: Palette 4/131

NEET 2026 MCQ

Adaptive radiation in placental mammals and Australian Marsupials leading to similarity between distant species is an example of $\_\_\_\_$ .

A

genetic drift

B

divergent evolution

C

convergent evolution

D

founder effect

Question 5: Palette 5/131

NEET 2026 MCQ

Given below are two statements :

Statement I : Modern Homo sapiens arose in Australia and moved across continents.

Statement II: Homo sapiens arose around 75000 to 10000 years ago.

In the light of the above statements, choose the most appropriate answer from the options given below:

A

Statement I is incorrect but Statement II is correct

B

Both Statement I and Statement II are correct

C

Both Statement I and Statement II are incorrect

D

Statement I is correct but Statement II is incorrect

Question 6: Palette 6/131

NEET 2026 MCQ

A population of diploid organisms is at Hardy-Weinberg equilibrium. If the frequency of allele $A$ is 0.1 , the frequency of AA is $\_\_\_\_$ .

A

0.99

B

0.01

C

0.02

D

0.10

Question 7: Palette 7/131

NEET 2026 MCQ

Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason $\mathbf{R}$.

Assertion A : Forelimbs of human and bats are homologous.

Reason R : Forelimbs of humans and bats have similar anatomical structure.

In the light of the above statements, choose the most appropriate answer from the options given below.

A

$\mathbf{A}$ is false but $\mathbf{R}$ is true

B

Both $\mathbf{A}$ and $\mathbf{R}$ are correct and $\mathbf{R}$ is the correct explanation of $\mathbf{A}$

C

Both $\mathbf{A}$ and $\mathbf{R}$ are true, but $\mathbf{R}$ is not the correct explanation of $\mathbf{A}$

D

$\mathbf{A}$ is true but $\mathbf{R}$ is false

Question 8: Palette 8/131

NEET 2026 MCQ

Natural selection can lead to $\_\_\_\_$ .

(a) stabilisation

(b) genetic drift

(c) directional change

(d) disruption

Choose the correct answer from the options given below :

A

(a) and (c) only

B

(a) only

C

(a), (c) and (d) only

D

(a), (b), (c) and (d)

Question 9: Palette 9/131

NEET 2026 MSQ

Which of the following is not evidence for evolution?

A

Divergent evolution of anatomical structures such as forelimbs

B

Convergent evolution of traits like wings of birds and butterflies

C

Paleontological evidence from fossil records

D

Embryological support for evolution as proposed by Ernst Heckel

Question 10: Palette 10/131

NEET 2025 MCQ

Sweet potato and potato represent a certain type of evolution. Select the correct combination of terms to explain the evolution.

A

Homology, convergent

B

Analogy, divergent

C

Analogy, convergent

D

Homology, divergent

Question 11: Palette 11/131

NEET 2024 MCQ

Match List-I with List-II :

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

Choose the correct answer from the options given below :

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 12: Palette 12/131

NEET 2024 MCQ

Which evolutionary phenomenon is depicted by the sketch given in figure?

A

Artificial selection

B

Genetic drift

C

Convergent evolution

D

Adaptive radiation

Question 13: Palette 13/131

NEET 2024 MCQ

Match List-I with List-II with respect to convergent evolution:

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

Choose the correct answer from the options given below:

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 14: Palette 14/131

NEET 2024 MCQ

Match List I with List II:

	List - I		List - II
(A)	Living Fossil	(I)	Elongated canine teeth
(B)	Connecting Link	(II)	Vermiform appendix
(C)	Vestigial Organ	(III)	Echidna
(D)	Atavism	(IV)	Latimeria

Choose the correct answer from the options given below:

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 15: Palette 15/131

NEET 2024 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 16: Palette 16/131

NEET 2024 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 17: Palette 17/131

NEET 2024 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 18: Palette 18/131

NEET 2024 MCQ

Match List I with List II:

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

Choose the correct answer from the options given below :

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 19: Palette 19/131

NEET 2023 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 20: Palette 20/131

NEET 2023 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 21: Palette 21/131

NEET 2023 MCQ

Given below are two statements:

Statement I: RNA mutates at a faster rate.

Statement II: Viruses having RNA genome and shorter life span mutate and evolve faster.

In the light of the above statements, choose the correct answer from the options given below:

A

Both Statement I and Statement II are false.

B

Statement I is true but Statement II is false.

C

Statement I is false but Statement II is true.

D

Both Statement I and Statement II are true.

Question 22: Palette 22/131

NEET 2022 MCQ

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

A

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

B

Creation of life from dead and decaying matter

C

Creation of life from chemicals

D

Origin of sperm in human testes

Question 23: Palette 23/131

NEET 2022 MCQ

Select the correct statement regarding mutation theory of evolution.

A

Large differences due to mutations arise gradually in a population

B

This theory was proposed by Alfred Wallace

C

Variations are small directional changes

D

Single step large mutation is a cause of speciation

Question 24: Palette 24/131

NEET 2022 MCQ

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

A

Stabilising change

B

Directional change

C

Disruptive change

D

Random change

Question 25: Palette 25/131

NEET 2022 MCQ

Which of the following statements is not true?

A

Analogous structures are a result of convergent evolution

B

Sweet potato and potato is an example of analogy

C

Homology indicates common ancestry

D

Flippers of penguins and dolphins are a pair of homologous organs

Question 26: Palette 26/131

NEET 2021 MCQ

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

A

Genetic drift

B

Natural selection

C

Genetic recombination

D

Mutation

Question 27: Palette 27/131

NEET 2021 MCQ

Match List-I with List-II.

	List-I		List-II
(a)	Adaptive radiation	(i)	Selection of resistant varieties due to excessive use of herbicides and pesticides
(b)	Convergent evolution	(ii)	Bones of forelimbs in Man and Whale
(c)	Divergent evolution	(iii)	Wings of Butterfly and Bird
(d)	Evolution by anthropogenic action	(iv)	Darwin Finches

Choose the correct answer from the options given below.

A

(a)	(b)	(c)	(d)
(i)	(iv)	(iii)	(ii)

B

(a)	(b)	(c)	(d)
(iv)	(iii)	(ii)	(i)

C

(a)	(b)	(c)	(d)
(iii)	(ii)	(i)	(iv)

D

(a)	(b)	(c)	(d)
(ii)	(i)	(iv)	(iii)

Question 28: Palette 28/131

NEET 2020 MCQ

Embryological support for evolution was disapproved by

A

Oparin

B

Alfred Wallace

C

Karl Ernst von Baer

D

Charles Darwin

Question 29: Palette 29/131

NEET 2020 MCQ

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

A

CH₃, H₂, NH₃ and water vapor at 600°C

B

CH₄, H₂, NH₃ and water vapor at 800°C

C

CH₃ , H₂ , NH₄ and water vapor at 800°C

D

CH₄ , H₂ , NH₃ and water vapor at 600°C

Question 30: Palette 30/131

NEET 2020 MCQ

Flippers of Penguins and Dolphins are examples of

A

Adaptive radiation

B

Natural selection

C

Industrial melanism

D

Convergent evolution

Question 31: Palette 31/131

NEET 2020 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

(b), (c) and (d)

B

only (a)

C

(a) and (c)

D

only (d)

Question 32: Palette 32/131

NEET 2019 MCQ

Match the hominids with their correct brain size :

(a) Homo habilis	(i) 900 cc
(b) Homo neanderthalensis	(ii) 1350 cc
(c) Homo erectus	(iii) 650-800 cc
(d) Homo sapiens	(iv) 1400 cc

Select the correct option.

A

(a)	(b)	(c)	(d)
(iii)	(iv)	(i)	(ii)

B

(a)	(b)	(c)	(d)
(iv)	(iii)	(i)	(ii)

C

(a)	(b)	(c)	(d)
(iii)	(i)	(iv)	(ii)

D

(a)	(b)	(c)	(d)
(iii)	(ii)	(i)	(iv)

Question 33: Palette 33/131

NEET 2019 MCQ

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

A

small and directional

B

small and directionless

C

random and directional

D

random and directionless

Question 34: Palette 34/131

NEET 2019 MCQ

In a species, the weight of newborn ranges from 2 to 5 kg. 97% of the newborn 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 5kg die. Which type of selection process is taking place?

A

Disruptive Selection

B

Cyclical Selection

C

Directional Selection

D

Stabilizing Selection

Question 35: Palette 35/131

NEET 2018 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 36: Palette 36/131

NEET 2018 MCQ

According to Hugo de Vries, the mechanism of evolution is

A

multiple step mutations

B

saltation

C

phenotypic variations

D

minor mutations

Question 37: Palette 37/131

NEET 2018 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 38: Palette 38/131

NEET 2016 MCQ

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

A

Ramapithecus $ \to $ Homo habilis $ \to $ Australopithecus $ \to $ Homo erectus

B

Australopithecus $ \to $ Ramapithecus $ \to $ Homo habilis $ \to $ Homo erectus

C

Ramapithecus $ \to $ Australopithecus $ \to $ Homo habilis $ \to $ Homo erectus

D

Australopithecus $ \to $ Homo habilis $ \to $ Ramapithecus $ \to $ Homo erectus

Question 39: Palette 39/131

NEET 2016 MCQ

Genetic drift operates in

A

slow reproductive population

B

large isolated population

C

non-reproductive population

D

small isolated population

Question 40: Palette 40/131

NEET 2016 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 41: Palette 41/131

NEET 2016 MCQ

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

A

pq

B

p²

C

2pq

D

q²

Question 42: Palette 42/131

NEET 2016 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

Both (a) and (b) are false

B

Both (a) and (b) are correct

C

(b) is correct but (a) is false

D

(a) is correct but (b) is false

Question 43: Palette 43/131

NEET 2016 MCQ

Analogous structures are a result of :

A

Divergent evolution

B

Convergent evolution

C

Stabilizing selection

D

Shared ancestry

Question 44: Palette 44/131

NEET 2016 MCQ

Which of the following structures is homologus to the wing of a bird ?

A

Wing of a Moth

B

Dorsal fin of a Shark

C

Flipper of Whale

D

Hindlimb of Rabbit

Question 45: Palette 45/131

NEET 2015 MCQ

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

A

Transduction

B

Chromosomal aberrations

C

Recombination

D

Genetic Drift

Question 46: Palette 46/131

NEET 2015 MCQ

Which of the following had the smallest brain capacity ?

A

Homo neanderthalensis

B

Homo erectus

C

Homo sapiens

D

Homo habilis

Question 47: Palette 47/131

NEET 2015 MCQ

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

A

homologous structures and represent divergent evolution

B

phylogenetic structures and represent divergent evolution

C

homologous structures and represent convergent evolution

D

analogous structures and represent convergent evolution

Question 48: Palette 48/131

NEET 2015 MCQ

Industrial melanism is an example of -

A

Mutation

B

Natural selection

C

Neo Darwinism

D

Neo Lamarckism

Question 49: Palette 49/131

NEET 2015 MCQ

A population will not exist in Hardy-Weinberg equilibrium if

A

there are no mutations

B

individuals mate selectively

C

the population is large

D

there is no migration

Question 50: Palette 50/131

NEET 2014 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 51: Palette 51/131

NEET 2014 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

Homologous organs

C

Convergent evolution

D

Adaptive radiation

Question 52: Palette 52/131

NEET 2014 MSQ

Which one of the following are analogous structures?

A

Flippers of Dolphin and Legs of Horse

B

Thorns of Bougainvillea and Tendrils of Cucurbita

C

Wings of Bat and Wings of Pigeon

D

Gills of Prawn and Lungs of Man

Question 53: Palette 53/131

NEET 2013 MCQ

The finch species of Galapagos Islands are grouped according to their food sources. Which of the following is not a finch food ?

A

Insects

B

Carrion

C

Tree buds

D

Seeds

Question 54: Palette 54/131

NEET 2013 MCQ

Dinosaurs dominated the World in which of the following geological era ?

A

Jurassic

B

Devonion

C

Coenozoic

D

Mesozoic

Question 55: Palette 55/131

NEET 2013 MCQ

Random undirectional change in allele frequencies that occur by chance in all populations and especially in small populations is known as :-

A

Genetic drift

B

Migration

C

Mutation

D

Natural selection

Question 56: Palette 56/131

NEET 2013 MCQ

Genetic variation in a population arises due to :

A

Reproductive isolation and selection

B

Mutations only

C

Mutations as well as recombination

D

Recombination only

Question 57: Palette 57/131

NEET 2013 MCQ

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

A

Genetic drift

B

Genetic load

C

Genetic flow

D

Random mating

Question 58: Palette 58/131

NEET 2013 MCQ

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

A

Convergent evolution

B

Adaptive radiation

C

Natural selection

D

Non-random evolution

Question 59: Palette 59/131

NEET 2013 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

Competition within closely related species

C

Intraspecific competition

D

Interspecific competition

Question 60: Palette 60/131

NEET 2013 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 61: Palette 61/131

NEET 2013 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

Homologous organs that have evolved due to divergent evolution

B

Analogous organs that have evolved due to convergent evolution

C

Homologous organs that have evolved due to convergent evolution

D

Analogous organs that have evolved due to divergent evolution

Question 62: Palette 62/131

NEET 2012 MCQ

The idea of mutations was brought forth by :

A

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

B

Hugo do Vries, who worked on evening primrose

C

Gregor Mendol, who worked on Pisum sativum

D

Hardy Weinberg, who worked on allele frequencies in a population

Question 63: Palette 63/131

NEET 2012 MCQ

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

A

Uprigth posture

B

Increasing cranial capacity

C

Shortening of jaws

D

Binocular vision

Question 64: Palette 64/131

NEET 2012 MCQ

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

A

Convergent evolution $ \to $ Thorns of Bougainvillia and tendrils of cucurbita & Divergent evolution $ \to $ Eyes of Octopus and mammals

B

Convergent evolution $ \to $ Eyes of octopus & Divergent evolution $ \to $ Bones of forelimpbs of mammals and vertebrates

C

Convergent evolution $ \to $ Thorns of Bougainvillia and ten drils of cucurbita & Divergent evolution $ \to $ Wings of butterflies and birds

D

Convergent evolution $ \to $ Bones of forelimbs of vertebrates & Divergent evolution $ \to $ Wings of butterfly and birds

Question 65: Palette 65/131

NEET 2012 MCQ

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

A

divergent evolution

B

Natural selection

C

Migration

D

Adaptive radiation

Question 66: Palette 66/131

NEET 2012 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

Neanderthal human

B

Homo habilis

C

Cro-magnan humans

D

Ramapithecus

Question 67: Palette 67/131

NEET 2011 MCQ

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

A

Uprigth posture

B

Shortening of jaws

C

Binocular vision

D

Increasing cranial capacity

Question 68: Palette 68/131

NEET 2010 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 a flask resulted in formation of (ii) .
(C) Vermiform appendix is a (i) organ and an (ii) evidence pf evolution.
(D) According to Darwin evolution took place due to (i) and (ii) of the fittest.

A

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

B

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

C

(A) - (i) convergent, (B) - (ii) oxygen, (ii) nucleosides

D

(B) - (i) water vapour, (ii) amino acids, (C) - (i) rudimentary (ii) anatomical

Question 69: Palette 69/131

NEET 2010 MCQ

The most apparent changes during the evolutionary history of Homo sapiens is traced in

A

Remarkable increase in the brain size

B

Walking upright

C

Loss of body hair

D

Shortening of the jaws

Question 70: Palette 70/131

NEET 2010 MCQ

Darwin's finches are a good example of –

A

Convergent evolution

B

Connecting link

C

Industrial melanism

D

Adaptive radiation

Question 71: Palette 71/131

NEET 2009 MCQ

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

A

Natural selection whereby the darker forms were selected.

B

Protective mimicry

C

Inheritance of darker colour character acquired due to the darker environment

D

Appearance of the darker coloured individuals due to very poor sunlight

Question 72: Palette 72/131

NEET 2009 MCQ

Peripatus is a connecting link between :

A

Ctenophora and Platyhelminthes

B

Mollusca and Echinodermata

C

Coelenterata and Porifera

D

Annelida and Arthropoda

Question 73: Palette 73/131

NEET 2008 MCQ

Darwin's finches are a good example of –

A

Convergent evolution

B

Adaptive radiation

C

Connecting link

D

Industrial melanism

Question 74: Palette 74/131

NEET 2008 MCQ

Thorn of Bougainvillea and tendril of Cucurbita are examples of:

A

analogous organs

B

homologous organs

C

vestigial organs

D

retrogressive evolution

Question 75: Palette 75/131

NEET 2008 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 could separate combinations of molecules from the surroundings

B

They were able to reproduce

C

They were partially isolated from the surruounding

D

They could maintain an internal environment

Question 76: Palette 76/131

NEET 2008 MCQ

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

A

Mendel — Theory of pangenesis

B

deVries — Natural selection

C

Pasteur — Inheritance of acquired characters

D

Weismann — Theory of continuity of germplasm

Question 77: Palette 77/131

NEET 2007 MCQ

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

A

Microevolution

B

Convergent evolution

C

Co-evolution

D

Divergent evolution

Question 78: Palette 78/131

NEET 2007 MCQ

Which one of the following statements is correct?

A

Ontogeny repeats phylogeny.

B

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

C

Stem cells are specialized cells.

D

All plant and animal cells are totipotent.

Question 79: Palette 79/131

NEET 2007 MCQ

Adaptive radiation refers to:-

A

Adaptations due to Geographical isolation

B

Migration of members of a species to different geographical areas

C

Evolution of different species from a common ancestor

D

Power of adaptation in an individual to a variety of environments

Question 80: Palette 80/131

NEET 2007 MCQ

The concept of chemical evolution is based on-

A

Crystallization of chemicals

B

Effect of solar radiation on chemicals

C

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

D

Interaction of water, air and clay under intense heat

Question 81: Palette 81/131

NEET 2007 MCQ

The finches of Galapogas islands provide an evidence in favour of-

A

Special Creation

B

Biogeographical Evolution

C

Evolution due to Mutation

D

Retrogressive Evolution

Question 82: Palette 82/131

NEET 2006 MCQ

Praying mantis is a good example of-

A

Warning colouration

B

Camouflage

C

Mullerian mimicry

D

Social insects

Question 83: Palette 83/131

NEET 2006 MCQ

Jurassic period of the Mesozoic era characterized by-

A

Radiation of reptiles and origin of mammal like reptiles

B

Flowering plants and first dinosaurs appear

C

Gymnosperms are dominant plants and first birds appear

D

Dinosaurs become extinct and angiosperms appear

Question 84: Palette 84/131

NEET 2006 MCQ

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

A

Aspartic acid

B

Alanine

C

Glycine

D

Glutamic acid

Question 85: Palette 85/131

NEET 2006 MCQ

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

A

Homologous organs onl

B

Homologous and vestigial organs

C

Homologous and analogous organs

D

Analogous and vestigial organs

Question 86: Palette 86/131

NEET 2005 MCQ

Which of the following is not true for a species ?

A

Variations occur among members of a species

B

Gene flow does not occur between the populations of a species

C

Each species is reproductively isolated from every other species

D

Members of a species can interbreed

Question 87: Palette 87/131

NEET 2005 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

0.48

B

0.24

C

0.36

D

0.16

Question 88: Palette 88/131

NEET 2005 MCQ

There are two opposing views about origin of modern man. According to one view Homo erectus in Asia were the ancestors of modern man. A study of variation of DNA however suggested African origin of modern man. What kind of observation of DNA variation could suggest this ?

A

Variation only in Asia and no variation in Africa

B

Similar variation in Africa and Asia

C

Greater variation in Africa than in Asia

D

Greater variation in Asia than in Africa

Question 89: Palette 89/131

NEET 2005 MCQ

Which of the following is the relatively most accurate method for dating of fossils ?

A

Radio-carbon method

B

Uranium-lead method

C

Potassium–argon method

D

Electron-spin resonance method

Question 90: Palette 90/131

NEET 2005 MCQ

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

A

Prevalence of pesticide resistant insects

B

Development of organs from 'stem' cells for organ transplantation

C

production of 'Dolly', the sheep by cloning

D

Development of transgenic animals

Question 91: Palette 91/131

NEET 2005 MCQ

Which one of the following experiments suggests that simplest living organisms could not have originated spontaneously from non-living matter ?

A

Meat was not spoiled, when heated and kept sealed in a vessel

B

Larva cound appear in decaying organic matter

C

Microbes appeared form unsterilized organic matter

D

microbes did not appear in stored meat

Question 92: Palette 92/131

NEET 2005 MCQ

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

A

Althea rosea

B

Oenothera lamarckiana

C

Pisum sativum

D

Drosophila melanogaster

Question 93: Palette 93/131

NEET 2004 MCQ

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

A

Evidence from fossil remains and the fossil mitochondrial DNA alone

B

Evidence from DNA extracted from sex chromosomes, autosomes

C

Comparison of chromosomes morphology only

D

Evidence from DNA from sex chromosomes only

Question 94: Palette 94/131

NEET 2004 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 includes -

A

Electron spin resonance (ESR) & fossil DNA

B

Study of carbohydrates/proteins in fossils

C

Study of the conditions of fossilization

D

Study of carbohydrates/proteins in rocks

Question 95: Palette 95/131

NEET 2004 MCQ

According to oparin, which one of the following was not present in the primitive atmosphere of the earth ?

A

Water vapour

B

Oxygen

C

Methane

D

Hydrogen

Question 96: Palette 96/131

NEET 2004 MCQ

Which one of the following is living fossil ?

A

Cycas

B

Moss

C

spirogyra

D

Saccharomyces

Question 97: Palette 97/131

NEET 2004 MCQ

Diversification in plant life appeared

A

By seed dispersal

B

Due to abrupt mutations

C

Due to long periods of evolutionary changes

D

Suddenly on earth

Question 98: Palette 98/131

NEET 2003 MCQ

Which one of the following describes correctly the homologous structures ?

A

Organs with anatomical dissimilarities but performing same function

B

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

C

Organs with anatomical similarities, but performing different func

D

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

Question 99: Palette 99/131

NEET 2003 MCQ

In a random mating population in equilibrium, which of the following brings about a change in gene frequency in a non-directional manner : -

A

Selection

B

Random drift

C

Mutations

D

Migration

Question 100: Palette 100/131

NEET 2003 MCQ

Convergent evolution is illustrated by : -

A

Bacterium and protozoan

B

Rat and dog

C

Dogfish and whale

D

Starfish and cuttle fish

Question 101: Palette 101/131

NEET 2003 MCQ

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

A

Variations, natural selection, overproduction, constancy of population size

B

Overproduction, constancy of population size, variations, natural selection

C

Variations, constancy of population size, overproduction, natural selection

D

Overproduction, variations, constancy of population size, natural selection

Question 102: Palette 102/131

NEET 2003 MCQ

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

A

Survival of the fittest

B

Parasites and predators as natural enemies

C

Discontinuous variations

D

Struggle for existence

Question 103: Palette 103/131

NEET 2003 MCQ

Industrial melanism is an example of : -

A

Darkening of skin due to smoke from industries

B

Defensive adaptation of skin against ultraviolet radiations

C

Drug resistance

D

Protective resemblance with the surroundings

Question 104: Palette 104/131

NEET 2003 MCQ

Which one of the following is categorised under living fossils ?

A

Cycas

B

Metasequoia

C

Pinus

D

Selaginella

Question 105: Palette 105/131

NEET 2003 MCQ

Random genetic drift in a population probably results from

A

Constant low mutation rate

B

Interbreeding within this population

C

Large population size

D

Highly genetically variable individuals

Question 106: Palette 106/131

NEET 2002 MCQ

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

A

Java

B

Africa

C

China

D

France

Question 107: Palette 107/131

NEET 2002 MCQ

Genetic drift oparates in : -

A

Slow reproductive population

B

Small isolated population

C

Large isolated population

D

Fast reproductive population

Question 108: Palette 108/131

NEET 2002 MCQ

There is no life on moon due to the absence of -

A

O₂

B

Light

C

Water

D

Temperature

Question 109: Palette 109/131

NEET 2002 MCQ

Sequence of which of the following is used to know the phylogeny ?

A

DNA

B

r-RNA

C

m-RNA

D

t-RNA

Question 110: Palette 110/131

NEET 2002 MCQ

Which of the following are homologous organs ?

A

Wings of birds & Pectoral fins of fish

B

Wings of bat & Butterfly

C

Legs of frog & Cockroch

D

Wings of birds & Locust

Question 111: Palette 111/131

NEET 2002 MCQ

Cause of mimicry is -

A

offence

B

concealment

C

defence

D

both (b) and (c)

Question 112: Palette 112/131

NEET 2002 MCQ

In which condition, the gene ratio remains constant for any species population ?

A

Gene flow

B

Mutation

C

Sexual selection

D

Random mating

Question 113: Palette 113/131

NEET 2002 MCQ

Which of the following is important for speciation ?

A

Behavioural isolation

B

Seasonal isolation

C

Tropical isolation

D

Reproductive isolation

Question 114: Palette 114/131

NEET 2002 MCQ

In which era reptiles were dominant ?

A

Archaeozoic era

B

Mesozoic era

C

Coenozoic era

D

Paleozoic era

Question 115: Palette 115/131

NEET 2001 MCQ

First life on earth was : -

A

Autotrophs

B

Photoautotrophs

C

Cyanobacteria

D

Chemohetrotrophs

Question 116: Palette 116/131

NEET 2001 MCQ

Which statement is correct about centre of origin of plant ?

A

Climatic condition more favourable

B

More diversity in improved variety

C

None

D

Frequency of dominant gene is more

Question 117: Palette 117/131

NEET 2001 MCQ

Occurrence of endemic species in South America and Australia is due to

A

These is no terrestrial route to these places

B

Retrogressive evolution

C

These species has been extinct from other regions

D

Continental separation

Question 118: Palette 118/131

NEET 2001 MCQ

Reason of diversity in living being : -

A

Mutation

B

Short term evolutionary change

C

Long term evolutionary change

D

Gradual change

Question 119: Palette 119/131

NEET 2001 MCQ

Most abundant organic compound on earth is

A

Cellulose

B

Steroids

C

Protein

D

Lipids

Question 120: Palette 120/131

NEET 2001 MCQ

Forthcoming generations are less adaptive than their parental generation due to

A

Genetic drift

B

Natural selection

C

Mutation

D

Adaptation

Question 121: Palette 121/131

NEET 2001 MCQ

Which of the following is closest relative of man ?

A

Gorilla

B

Chimpanzee

C

Gibbon

D

Orangutan

Question 122: Palette 122/131

NEET 2001 MCQ

Half life period of C¹⁴ is : -

A

5000 years

B

50 years

C

500 years

D

5 × 10⁴ years

Question 123: Palette 123/131

NEET 2001 MCQ

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

A

Peking man, Hedalberg man, Neanderthal man, Cromagnon man

B

Peking man, Neanderthal man, Homosapiens Cromagnon man

C

Peking man, Neanderthal man, Homosapiens Hedalberg man

D

Peking man, Homo sapiens, Neanderthel man, Cromagnon man

Question 124: Palette 124/131

NEET 2001 MCQ

Darwins theory of pangenesis shows similarity with theory of inheritance of acquired characters then what shall be correct according to it

A

There should be some physical basis of inheritance

B

Size of organs increase with aging

C

Useful organs become strong and developed while useless organs become extinct. These organs help in struggle for survival

D

Development of organs is due to will power

Question 125: Palette 125/131

NEET 2001 MCQ

Similarities in organism with different genotype indicates : -

A

Divergent evolution

B

Macroevolution

C

Convergent evolution

D

Microevolution

Question 126: Palette 126/131

NEET 2000 MCQ

Homo sapiens have evolved in

A

Pleistocene

B

Paleocene

C

Oligocene

D

Holocene

Question 127: Palette 127/131

NEET 2000 MCQ

Which evidence of evolution related to Darwin's finches ?

A

Evidences from comparative anatomy

B

Evidences from embryology

C

Evidences from biogeographical distribution

D

Evidences from palaeontological

Question 128: Palette 128/131

NEET 2000 MCQ

Which is not a vestigial organ in man ?

A

Segmental muscles of abdomen

B

Third molar

C

Coccyx

D

Nails

Question 129: Palette 129/131

NEET 2000 MCQ

Character which is closely related to human evolution

A

Reduction in size of jaws

B

Disappearance of tail

C

Flat nails

D

Binocular vision

Question 130: Palette 130/131

NEET 2000 MCQ

Which is the most important factor for continuity of a species from evolutionary point of view ?

A

Formation of gametes

B

Synthesis of proteins

C

Replication of genetic material

D

None of these

Question 131: Palette 131/131

NEET 2000 MCQ

Who is directly related to man ?

A

Gorilla

B

Orangutan

C

Gibbon

D

Rhesus