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Evolution

Description: Practice mcq for medical entrance exams.
Number of Questions: 15
Created by:
Tags: evolution Theories and Evidences of Evolution Theory of Evolution of Life Forms Human Evolution Origin and Evolution of Man
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What is the correct sequence of the following events of origin of species according to Charles Darwin's theory?

  1. Natural selection
  2. Variations and their inheritance
  3. Survival of the fittest
  4. Struggle for existence
  1. 1, 2, 3, 4

  2. 4, 2, 3, 1

  3. 2, 3, 1, 4

  4. 2, 4, 3, 1

  5. 1, 3, 2, 4


Correct Option: B
Explanation:

This is the correct sequence of events in origin of species according to Charles Darwin's theory.

The theory of spontaneous generation or abiogenesis was disproved by

  1. A. R. Wallace

  2. A. I. Oparin

  3. Louis Pasteur

  4. Sidney Fox

  5. J. B. Haldane


Correct Option: C
Explanation:

The theory of spontaneous generation or abiogenesis was disproved by Louis Pasteur.

Charles Darwin’s book ‘On the Origin of Species: By Means of Natural Selection' was first published in

  1. 1779

  2. 1831

  3. 1859

  4. 1901

  5. 1869


Correct Option: C
Explanation:

Charles Darwin’s book ‘On the Origin of Species: By Means of Natural Selection' was first published in 1859.

The phenomenon of industrial melanism demonstrates

  1. reproductive isolation

  2. geographical isolation

  3. induced mutation

  4. natural selection

  5. sympatric speciation


Correct Option: D
Explanation:

Industrial melanism is due to natural selection.

Which of the following concepts states that in a small, randomly mating population, the allele frequencies remain constant from generation to generation?

  1. Darwinism

  2. Neo-Lamarckism

  3. Hardy Weinberg Principle

  4. Mutation Theory

  5. Lamarckism


Correct Option: C
Explanation:

Hardy Weinberg Principle says that in a small, randomly mating population, the allele frequencies remain constant from generation to generation.

The resemblance of a tadpole with a fish is an example of

  1. mutation

  2. natural selection

  3. genetic drift

  4. recapitulation

  5. gene migration


Correct Option: D
Explanation:

The resemblance of tadpole with fish is an example of recapitulation.

Which of the following statements regarding genetic drift is correct?

  1. It is an orderly change in gene frequencies.

  2. It produces greatest fluctuations in large populations.

  3. It is a random change in gene frequencies.

  4. It has nothing in common with inbreeding.

  5. It is a non-random change in gene frequencies.


Correct Option: C
Explanation:

Genetic drift is the random change in gene frequencies.

Which of the following is the correct sequence of stages in evolution of modern man?

  1. Australopithecus, Cromagnon man, Homo erectus, Neanderthal man, Modern man

  2. Homo erectus, Australopithecus, Neanderthal man, Cromagnon man, Modern man

  3. Home erectus, Neanderthal man, Australopithecus, Cromagnon man, Modern man

  4. Australopithecus, Homo erectus, Neanderthal man, Cromagnon man, Modern man

  5. Australopithecus, Neanderthal man, Cro-magnon man, Homo-erectus and Modern man


Correct Option: D
Explanation:

The correct sequence in human evolution is: Australopithecus, Homo erectus, Neanderthal man, Cro-magnon man, Modern man.

Appearance of antibiotic resistant bacteria in a bacterial population is an example of

  1. divergent evolution

  2. convergent evolution

  3. pre-existing variation in the population

  4. inheritance of acquired characters

  5. adaptive radiation


Correct Option: C
Explanation:

Appearance of antibiotic resistant bacteria in a bacterial population is an example of pre-existing variation in the population. The process of evolution of different species in a given geographical area starting from a point and literally radiating to other geographical areas or habitats is known as adaptive radiation.

A single-step large mutation is called

  1. point mutation

  2. frame shift mutation

  3. saltation

  4. genetic drift

  5. transition


Correct Option: C
Explanation:

A single-step large mutation is called saltation.

Which of the following options about Neanderthal man is correct?

  1. Brain size 1400 cc

  2. Lived in east and central Asia 1,00,000-40,000 years back

  3. Used hides to protect their body

  4. Buried their dead

  5. Essentially ate fruit


Correct Option: D
Explanation:

Neanderthal man probably ate meat.

Which of the following is not a vestigial organ?

  1. Plica semilumaris

  2. Wisdom tooth

  3. Ear pinna muscle

  4. Vermiform appendix

  5. Epiglottis


Correct Option: E
Explanation:

Epiglottis is not a vestigial organ.

Closely related, morphologically similar, reproductively isolated sympatric populations are designated as

  1. biological species

  2. endangered species

  3. polytypic species

  4. sibling species

  5. clones


Correct Option: D
Explanation:

Closely related, morphologically similar, reproductively isolated sympatric populations are designated as sibling species.

What do we call the formation of different genotype in new settlement when a small group of population finds new settlement?

  1. Bottleneck effect

  2. Sewell Wright effect

  3. Genetic drift

  4. Gene flow

  5. Founder effect


Correct Option: E
Explanation:

The formation of different genotype in new settlement when a small group of population found new settlement is called founder effect.

Which of the following sets of structures includes only analogous organs?

  1. Hind legs of horse, grasshopper and bat

  2. Hands of man, monkey and kangaroo

  3. Mandibles of cockroach, mosquito and honeybee

  4. Wings of butterfly, bird and bat

  5. Beaks of crow, duck and sunbirds


Correct Option: D
Explanation:

Wings of butterfly, bird and bat are examples of analogous organs.

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