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Question
In a random mating population in equilibrium, which of the following brings about a change in gene frequency in a non-directional manner :
In a random mating population in equilibrium, which of the following brings about a change in gene frequency in a non-directional manner :
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Solution
The correct option is B Random drift
In a random mating population in equilibrium, Random drift brings about a change in gene frequency. This is can happen by recurring small population sizes, severe reductions in population size called "bottlenecks" and founder events where a new population starts from a small number of individuals.
Migration refers to the movement of individuals into and out of the population. Mutation refers to random and sudden heritable variations or changes arising in the genetic constitution. Selection in biology means preferential survival and reproduction or preferential elimination of individuals with certain genotypes (genetic compositions), by means of natural or artificial controlling factors.
In a random mating population in equilibrium, Random drift brings about a change in gene frequency. This is can happen by recurring small population sizes, severe reductions in population size called "bottlenecks" and founder events where a new population starts from a small number of individuals.
Migration refers to the movement of individuals into and out of the population. Mutation refers to random and sudden heritable variations or changes arising in the genetic constitution. Selection in biology means preferential survival and reproduction or preferential elimination of individuals with certain genotypes (genetic compositions), by means of natural or artificial controlling factors.
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