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Evolution · Question 61

AIPMT 2010 (Mains)MCQMedium📈 Topic in 12% papers+4−1
1

Given below are four statements (A-D) each with one or two blanks. Select the option which correctly fills up the blanks in two statements.

  1. C - (i) vestigial, (ii) anatomical, D - (i) mutations, (ii) multiplication
  2. D - (i) small variations, (ii) survival, A - (i) convergent
  3. A - (i) convergent, B - (i) oxygen, (ii) nucleosides
  4. B - (i) water vapour, (ii) amino acids, C - (i) rudimentary, (ii) anatomical

Answer

(2) D - (i) small variations, (ii) survival, A - (i) convergent

Solution

A: Wings of butterfly and birds look alike but are not anatomically similar; they result from convergent evolution (analogy).

D: As per NCERT, Darwin's theory is based on variations and natural selection, i.e., survival of the fittest.

⇒ D – (i) small variations, (ii) survival and A – (i) convergent fill the blanks correctly.

In option (1), 'mutations' is de Vries' idea, and in option (3) Miller's mixture had no oxygen and gave amino acids.

Answer: (2)

AIPMT 2010 (Mains)

Keep practising — Evolution

2

The most apparent changes during the evolutionary history of Homo sapiens are traced in

  1. Remarkable increase in the brain size
  2. Walking upright
  3. Loss of body hair
  4. Shortening of the jaws
AIPMT 2010 (Mains)
3

Darwin's finches are a good example of –

  1. Convergent evolution
  2. Connecting link
  3. Industrial melanism
  4. Adaptive radiation
AIPMT 2010 (Prelims)
4

In the case of peppered moth ( Biston betularia) the black-coloured form became dominant over the light-coloured form in England during industrial revolution. This is an example of -

  1. Natural selection whereby the darker forms were selected
  2. Protective mimicry
  3. Inheritance of darker colour character acquired due to the darker environment
  4. Appearance of the darker coloured individuals due to very poor sunlight
AIPMT 2009
5

Which one of the following pairs of items correctly belongs to the category of organs mentioned against it?

  1. Nephridia of earthworm and Malpighian tubules of cockroach - excretory organs
  2. Wings of honey bee and wings of crow - homologous organs
  3. Thorn of Bougainvillea and tendrils of Cucurbita - analogous organs
  4. Nictitating membrane and blind spot in human eye - vestigial organs
AIPMT 2008
6

Darwin's finches are a good example of –

  1. Convergent evolution
  2. Adaptive radiation
  3. Connecting link
  4. Industrial melanism
AIPMT 2008
7

Which one of the following scientist's name is correctly matched with the theory put forth by him?

  1. Mendel — Theory of pangenesis
  2. de Vries — Natural selection
  3. Pasteur — Inheritance of acquired characters
  4. Weismann — Theory of continuity of germplasm
AIPMT 2008
8

Which one of the following is incorrect about the characteristics of protobionts (coacervates and microspheres) as envisaged in the abiogenic origin of life?

  1. They could separate combinations of molecules from the surroundings
  2. They were able to reproduce
  3. They were partially isolated from the surroundings
  4. They could maintain an internal environment
AIPMT 2008
9

Thorn of Bougainvillea and tendril of Cucurbita are examples of:

  1. analogous organs
  2. homologous organs
  3. vestigial organs
  4. retrogressive evolution
AIPMT 2008
10

The concept of chemical evolution is based on-

  1. Crystallization of chemicals
  2. Effect of solar radiation on chemicals
  3. Possible origin of life by combination of chemicals under suitable environmental conditions
  4. Interaction of water, air and clay under intense heat
AIPMT 2007
11

The finches of Galapagos islands provide an evidence in favour of-

  1. Special Creation
  2. Biogeographical Evolution
  3. Evolution due to Mutation
  4. Retrogressive Evolution
AIPMT 2007

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