Question

A man having the genotype $EEFfGgHH$ can produce $P$ number of genetically different sperms, and a woman of genotype $liLLMmNn$ can generate $Q$ number of genetically different eggs. Determine the values of $P$ and $Q$.

• A. $P = 4$, $Q = 4$
• B. $P = 4$, $Q = 8$
• C. $P = 8$, $Q = 4$
• D. $P = 8$, $Q = 8$

Answer 1

Answer: (B)

$P = 4$, $Q = 8$

Answer 2

Types of gametes $= 2^n$, where $n$ is number of heterozygous loci. Thus, man will produce $2^2 = 4$ types of gametes and woman will produce $2^3 = 8$ types of gametes.