CBSE 12th Standard Biology Subject Evolution Ncert Exemplar MCQ Questions With Solution 2021
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CBSE 12th Standard Biology Subject Evolution Ncert Exemplar MCQ Questions With Solution 2021
12th Standard CBSE
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Reg.No. :
Biology
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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
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Fossils are generally found in:
(a)Sedimentary rocks
(b)Igneous rocks
(c)Metamorphic rocks
(d)Any type of rock
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The most accepted line of descent in human evolution is:
(a)Australopithecus -> Ramapithecus -> Homo sapies -> homo habillis
(b)Homo erectus -> homo habilis -> Homo sapiens
(c)Ramapithecus -> Homo habilis -> Homo erectus -> Homo sapiens
(d)Australopithecus -> Ramapithecus -> Homo erectus -> Homo habilis -> Homo sapiens.
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Which of the following is an example for link species?
(a)Lobe fish
(b)Doda bird
(c)Sea weed
(d)Tyrannosaurus rex
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Match the scientists listed under column 'A' with ideas listed in column 'B'.
Column 1 Column 2 (i) Darwin (M) abiogenesis (ii) Oparin (N) use and disuse of organs (iii) Lamarck (O) continental drift theory (iv) Wagner (P) evolution by natural selection (a)(i)-(M) ; (ii)-(P) ; (iii)-(N) ; (iv)-(O)
(b)(i)-(P) ; (ii)-(M) ; (iii)-(N) ; (iv)-(O)
(c)(i)-(N) ; (ii)-(P) ; (iii)-(O) ; (iv)-(M)
(d)(i)-(P) ; (ii)-(O) ; (iii)-(N) ; (iv)-(M)
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In 1953 S.L. Miller created primitive earth conditions in the laboratory and gave experimental evidence for origin of first form of life from pre-existing 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, non-reducing atmosphere
(d)high temperature, volvanic storms, reducing atmosphere containing \({ CH }_{ 4 }\) ,\({ NH }_{ 3 }\) etc.,
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Variation during mutations of meiotic recombinations are:
(a)random and directionless
(b)random sand directional
(c)random and small
(d)random, small and direction
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Appearance of antibiotic-resistant bacteria is an example of
(a)adaptive radiation
(b)transduction
(c)pre-existing variation in the population
(d)divergent evolution.
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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
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Analogous organs arise due to
(a)divergent evolution
(b)artificial selection
(c)genetic drift
(d)convergent evolution.
Multiple Choice Questions
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CBSE 12th Standard Biology Subject Evolution Ncert Exemplar MCQ Questions With Solution 2021 Answer Keys
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(c)
frogs evolved from gilled ancestors
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(a)
Sedimentary rocks
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(c)
Ramapithecus -> Homo habilis -> Homo erectus -> Homo sapiens
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(a)
Lobe fish
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(b)
(i)-(P) ; (ii)-(M) ; (iii)-(N) ; (iv)-(O)
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(d)
high temperature, volvanic storms, reducing atmosphere containing \({ CH }_{ 4 }\) ,\({ NH }_{ 3 }\) etc.,
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(a)
random and directionless
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(c)
pre-existing variation in the population
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(b)
they share a common ancestor
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(d)
convergent evolution.
Multiple Choice Questions
