Genetic drift is defined as the change in gene frequency that occurs by chance in a small population. It provides diversity to a population without any adaptations.
Random unidirectional change in allele frequencies that occurs by chance in all populations and especially in small populations is known as:
Held on 30 Apr 2013 · Verified 9 Jul 2026.
Migration
Natural Selection
Genetic drift
Mutation.
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Match List-I with List-II: $\begin{array}{|l|l|l|l|}\hline & \text{List I} & & \text{List II} \\\hline A. & \text{Gene pool} & I. & \text{Stable within a generation} \\\hline B. & \text{Genetic drift} & II. & \text{Change in gene frequency by chance} \\\hline C. & \text{Gene flow} & III. & \text{Transfer of genes into or out of population} \\\hline D & \text{Gene frequency} & IV. & \text{Total number of genes and their alleles} \\\hline \end{array}$ Chose the correct answer from the option given below:
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