At paritcular locus, frequency of 'A' allele is 0.6 and that of 'a' is 0.4. What would be the frequency of hetrozygotes in a randon malting population of equillibrium

Options

A. 0.16
B. 0.48
C. 0.36
D. 0.24

Answer

B

Explanation

(b) Allele frequency is the relative proportioin of a particular allele among individuals of a population . According to Hardy - weinberg equation , the frequency of dominant and recessive alleles in a population will remain constant from generation to generation if there is no mutation , selection , random drift and migration . As per Hardy-weinberg equation .
`p^(2) + 2pq + q^(2) = 1`
p = dominant allele frequency
q= recessive allele frequency
`p^(2)` = homogeneous dominant genotype
2pq = heterozygous genotype
`q^(2)` = homozygous recessive genotype
Here, p = 0.6 and q = 0.4
Therefore , heterozygotes frequency is = `2pq = 2 xx 0.6 xx 0.4 = 0.48`