Primary source of allelic variation is

Write short note on Hardy - Weinberg principle.
 

Random unidirectional change in allele frequencies that occurs by chance in all populations and especially in small populations is known as

Genetic variation in a population arises due to

Variation in gene frequencies within populations can occur by chance rather than by natural selection. This is referred to as

Factor affecting the Hardy-Weinberg principlesare

$(I)$ Gene flow ;

$(II)$ Genetic drift

$(III)$ Mutation

$(IV)$ Genetic recombination

$(V)$ Natural selection

The correct combination is