Q576
Allen
ANALYTICAL QUESTIONS
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
Q577
Allen
ANALYTICAL QUESTIONS
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.
Q578
Allen
ANALYTICAL QUESTIONS
MCQ
Original idea of survival of fittest was of :-
A.
Herbert Spencer
B.
Darwin
C.
Wallace
D.
None of these
Q579
Allen
ANALYTICAL QUESTIONS
MCQ
Fore coming generations are less adaptive than their parental generation due to :-
A.
Natural selection
B.
Mutation
C.
Genetic drift
D.
Adaptation
Q580
Allen
ANALYTICAL QUESTIONS
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
Q581
Allen
ANALYTICAL QUESTIONS
MCQ
Convergent evolution is illustrated by :-
A.
Rat and dog
B.
Bacterium and protozoan
C.
Starfish and cuttle fish
D.
Dogfish and whale
Q582
Allen
ANALYTICAL QUESTIONS
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
Q583
Allen
ANALYTICAL QUESTIONS
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
Q584
Allen
ANALYTICAL QUESTIONS
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
Q585
Allen
ANALYTICAL QUESTIONS
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
Q586
Allen
ANALYTICAL QUESTIONS
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
Q587
Allen
ANALYTICAL QUESTIONS
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
Q588
Allen
ANALYTICAL QUESTIONS
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
Q589
Allen
ANALYTICAL QUESTIONS
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
Q590
Allen
ANALYTICAL QUESTIONS
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
Q591
Allen
ANALYTICAL QUESTIONS
MCQ
Man who firstly believed in immortality of soul was ?
A.
Neanderthal man
B.
Cro-Magnon
C.
Java man
D.
Peking man
Q592
Allen
ANALYTICAL QUESTIONS
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.
Q593
Allen
ANALYTICAL QUESTIONS
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
Q594
Allen
ANALYTICAL QUESTIONS
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
Q595
Allen
ANALYTICAL QUESTIONS
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.
Q596
Allen
ANALYTICAL QUESTIONS
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
Q597
Allen
ANALYTICAL QUESTIONS
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
Q598
Allen
ANALYTICAL QUESTIONS
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
Q599
Allen
ANALYTICAL QUESTIONS
MCQ
Evolutionary history of an organism is known as:
A.
Phylogeny
B.
Ancestry
C.
Paleontology
D.
Ontogeny
Q600
Allen
ANALYTICAL QUESTIONS
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