A population is in Hardy- weinberg equilibrium for a gene with only two alleles. If the gene frequency of an allele $A$ is $0.7$, the genotype frequency of $Aa$ is
$0.21$
$0.42$
$0.36$
$0.7$
Genetic drift operates in
''Migration may enhance or blurr the effects of selection''. Comment.
State and explain any three factors affecting allele frequency in populations.
In Hardy-Weinberg principle expression of allele frequency is represented by
Natural selection where more individuals acquire specific character value other than the mean character value, leads to: