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Gene Flow

In a random m...

Question

In a random mating population in equilibrium, which of the following brings about a change in gene frequency in a non- directional manner?

A

Mutations

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B

Selection

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C

Random drift

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D

Migration

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Solution

The correct option is C
Random drift

Random genetic drift refers to the chance fluctuations in gene frequency that arise in finite populations.

If a random mating population suddenly starts to mate non-randomly, this will have no effect on gene frequencies.

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Q. In a random mating population in equilibrium, which of the following brings about a change in gene frequency in a non-directional manner?

Q. In random mating population in equilibrium, which of the following brings about a change in gene frequency in a nondirectional manner?

Q. In the absence of mutation, migration and selection, if gene frequencies are changed in a population, the change is due to

Q. Read the following statements and select the correct option.

I. When certain individuals migrate out of the population, gene frequencies change in the population.

II. Stabilising, directional and disruptive selection are types of artificial selection.

III. Extreme phenotypes are favoured in the disruptive selection.

IV. Single step large mutation is called genetic drift.

Q. Which of the following factors can change allelic frequency?
A. Gene flow
B. Natural selection
C. Random mating
D. Founder effect
E. Genetic recombination

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