Consider alleles ‘A’ and ‘a’ in a population. The frequency of heterozygotes will be highest when:
1
Frequency of ‘A’ is more than frequency of ‘a’.
2
Frequency of ‘A’ is less than frequency of ‘a’.
3
Frequency of ‘A’ is equal to frequency of ‘a’.
4
Frequency of ‘A’ and ‘a’ affects the frequency of homozygotes not heterozygotes.