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 randomly mating population of equilibrium ?

(1) 0.16

(2) 0.36

(3) 0.48

(4) 0.24

Subtopic:  Hardy Weinberg Law: 1 | Hardy Weinberg Law: 2 | Hardy Weinberg Law |
 81%
AIIMS - 2014
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Speciation of sympatric species is due to

(1) geographic isolation

(2) reproductive isolation

(3) isolation/separation

(4) migration

Subtopic:  Concept of Speciation |
 59%
AIIMS - 2013
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Flame cells and Malpighian tubules are the analogous organ in 

(1) insects and arthropods respectively 

(2) arthropods and echinodermates respectively

(3) helminths and arthropods with other insect respectively

(4) arthropds and other insect with helminths respectively

 72%
AIIMS - 2013
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Tendrils in plants are an exapmle of 

(1) Convergent evolution

(2) Radiation

(3) Divergent evolution

(4) Co-evolution 

Subtopic:  Concept of Organic Evolution: Evidence: 1 | Concept of Organic Evolution: Evidence |
 78%
From NCERT
AIIMS - 2012
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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 |
 76%
AIIMS - 2011
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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 |
 93%
From NCERT
AIIMS - 2011
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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 |
AIIMS - 2011
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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

 73%
AIIMS - 2010
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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 |
AIIMS - 2010
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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 |
 76%
AIIMS - 2010
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