Basis of life are
(1) nucleic acids
(2) proteins
(3) nucleoproteins
(4) amino acids
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyTheory of 'Saltations' was given by
(1) G Mendel
(2) Hugo de Vries
(3) J B S Haldane
(4) H J Miller
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe animal group which does not exist in Galapagos island is
(1) Insects
(2) Protozoa
(3) Crustacea
(4) Amphibia
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAppearence of dark-coloured pepper moths among the light-coloured ones as a result of increased industrial pollution is an example of
(1) Disruptive selection
(2) Stabilizing selection
(3) Directional selection
(4) None of the above
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMatch the columns
|
Column I |
Column II | |
A.
B.
C. |
Hugo de Vries
Julian Huxley
Jean Baptiste |
1.
2.
3. |
Inheritance of acquired characters Multiplication of individual species in geographical proportion Mutation theory of evolution |
Codes:
A B C
(1) 1 2 3
(2) 2 3 1
(3) 3 1 2
(4) 3 2 1
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyHardy-Weinberg's principle of 'zero evolution' is based on
(1) genetic equilibrium
(2) random mating
(3) no migrations
(4) All of the above
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhat does the term 'reproductive isolation' refers to?
(1) An individual is unable to fertilise itself
(2) Genes are not exchanged between two populations
(3) Individuals from two populations never mate
(4) Individuals form two populations never produce offsprings
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyBelow are listed some pairs of characters. the homologous pair is
(1) forelimbs of dog and camel
(2) insect wing and batwing
(3) feathers of birds and fins of fish
(4) lens of vertebrate and arthropod
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyPythons possess tiny leg bones that serve no purpose in locomotion. Such organs are
(1) homologous organs
(2) analogous organs
(3) vestigial organs
(4) Both (a) and (c)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe two critical steps in the evolution of humans were the
(1) evolution of bipedalism and the enlargement of the brain
(2) making and using tools
(3) using fire and making shelters
(4) exhibiting culture and having sophisticated tools
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology