Basis of life are 

(1) nucleic acids

(2) proteins

(3) nucleoproteins

(4) amino acids

Subtopic:  Origin of Life: Chemical Evolution: 1 | Origin of Life: Chemical Evolution: 2 | Origin of Life |
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Theory of 'Saltations' was given by 

(1) G Mendel

(2) Hugo de Vries

(3) J B S Haldane

(4) H J Miller

Subtopic:  Hugo De Vries Theory of Evolution |
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The animal group which does not exist in Galapagos island is

(1) Insects

(2) Protozoa

(3) Crustacea

(4) Amphibia

Subtopic:  Darwin's Theory |
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Appearence 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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Match 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

 

Subtopic:  Theory of Evolution & Lamarckism | Hugo De Vries Theory of Evolution |
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Hardy-Weinberg's principle of 'zero evolution' is based on

(1) genetic equilibrium

(2) random mating

(3) no migrations

(4) All of the above

Subtopic:  Hardy Weinberg Law: 1 | Hardy Weinberg Law |
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What 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

Subtopic:  Concept of Isolation |
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Below 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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Pythons 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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The 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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