Q. A population containing a gene ‘X’ with two alleles ‘Aa’ is in Hardy-Weinberg equilibrium for gene ‘X’. If the gene frequency of allele ‘A’ is 0.2, allele frequency of ‘a’ is
A) 0.2
B) 0.42
C) 0.8
D) 1
Explanation
Allele/gene frequency of ‘A’ = 0.2 For allelic frequency A + a = 1 So, allelic frequency of ‘a’ = 1 – 0.2 = 0.8
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.