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Evolution · Question 26

NEET (UG) 2021MatchingEasy📈 Topic in 75% papers+4−1
1

Match List-I with List-II. Choose the correct answer from the options given below.

  1. (a)-(i), (b)-(iv), (c)-(iii), (d)-(ii)
  2. (a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)
  3. (a)-(iii), (b)-(ii), (c)-(i), (d)-(iv)
  4. (a)-(ii), (b)-(i), (c)-(iv), (d)-(iii)

Answer

(2) (a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)

Solution

(a) Adaptive radiation: evolution of different varieties of finches from an original seed-eating form on the Galapagos Islands ⇒ Darwin Finches (iv).

(b) Convergent evolution: different structures evolve for the same function (analogous organs) ⇒ wings of butterfly and bird (iii).

(c) Divergent evolution: the same structure develops along different directions (homologous organs) ⇒ bones of forelimbs in man and whale (ii).

(d) Evolution by anthropogenic action: excessive use of herbicides and pesticides has resulted in selection of resistant varieties in a much lesser time scale ⇒ (i).

∴ (a)-(iv), (b)-(iii), (c)-(ii), (d)-(i).

Answer: (2)

NEET (UG) 2021

Keep practising — Evolution

2

Embryological support for evolution was disapproved by

  1. Oparin
  2. Alfred Wallace
  3. Karl Ernst von Baer
  4. Charles Darwin
NEET (UG) 2020
3

From his experiments, S.L. Miller produced amino acids by mixing the following in a closed flask

  1. CH3, H2, NH3 and water vapor at 600
  2. CH4, H2, NH3 and water vapor at 800
  3. CH3, H2, NH4 and water vapor at 800
  4. CH4, H2, NH3 and water vapor at 600
NEET (UG) 2020
4

Flippers of Penguins and Dolphins are examples of

  1. Adaptive radiation
  2. Natural selection
  3. Industrial melanism
  4. Convergent evolution
NEET (UG) 2020
5

Which of the following refer to correct example(s) of organisms which have evolved due to changes in environment brought about by anthropogenic action?

  1. B, C and D only
  2. A only
  3. A and C only
  4. D only
NEET (UG) 2020
6

A gene locus has two alleles A, a. If the frequency of dominant allele A is 0.4, then what will be the frequency of homozygous dominant, heterozygous and homozygous recessive individuals in the population?

  1. 0.16 (AA); 0.48 (Aa); 0.36 (aa)
  2. 0.16 (AA); 0.36 (Aa); 0.48 (aa)
  3. 0.36 (AA); 0.48 (Aa); 0.16 (aa)
  4. 0.16 (AA); 0.24 (Aa); 0.36 (aa)
NEET (UG) 2019
7

Variations caused by mutation, as proposed by Hugo de Vries, are :

  1. small and directional
  2. small and directionless
  3. random and directional
  4. random and directionless
NEET (UG) 2019
8

Match the hominids with their correct brain size : Select the correct option.

  1. (a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)
  2. (a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)
  3. (a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)
  4. (a)-(iii), (b)-(ii), (c)-(i), (d)-(iv)
NEET (UG) 2019
9

In a species, the weight of newborn ranges from 2 to 5 kg. 97\% of the newborn with an average weight between 3 to 3.3 kg survive whereas 99\% of the infants born with weights from 2 to 2.5 kg or 4.5 to 5 kg die. Which type of selection process is taking place?

  1. Disruptive Selection
  2. Cyclical Selection
  3. Directional Selection
  4. Stabilizing Selection
NEET (UG) 2019
10

The similarity of bone structure in the forelimbs of many vertebrates is an example of

  1. homology
  2. analogy
  3. convergent evolution
  4. adaptive radiation
NEET 2018
11

Among the following sets of examples for divergent evolution, select the incorrect option.

  1. Forelimbs of man, bat and cheetah
  2. Heart of bat, man and cheetah
  3. Brain of bat, man and cheetah
  4. Eye of octopus, bat and man
NEET 2018

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