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 |
 77%
AIIMS - 2010
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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 |
 52%
AIIMS - 2010
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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

 64%
From NCERT
AIIMS - 2010
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NEET 2023 - Target Batch - Aryan Raj Singh

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)

 85%
AIIMS - 2009
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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

 82%
AIIMS - 2009
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Why does it is said that looking at stars on a clear night sky means looking back in time?
A. What we are seeing at that time is actually has stated its journey millions of years back
B. What we are seeing at that time is actually has stated its journey trillions of days back
C. What we are seeing at that time is actually has stated its journey thousands of days back
D. What we are seeing at that time is actually has stated its journey thousands of kilometers away

Subtopic:  Cosmic Evolution |
 80%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh

Which of the following statements are not true?

(1) The origin of life is considered a unique event in the history of universe.

(2) Earth is just a speck.

(3) Universe is almost 20 million years old

(4) Galaxies contain stars and clouds of gas and dust

Subtopic:  Cosmic Evolution |
 80%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh

Big Bang theory attempts to explain

(1) The origin of universe

(2) The origin of Earth

(3) The origin of life

(4) The origin of environment

Subtopic:  Cosmic Evolution |
 88%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh