At a hypothetical locus, a man's genotype is Aa. What proportion of his gametes would be expected to receive the A allele?
A) All
B) ½
C) ¾
D) ¼
E) None

Question

Quizplus · Accepted Answer

The man's genotype is Aa, meaning he has one copy of the A allele and one copy of the a allele. During meiosis, the homologous chromosomes segregate so that each gamete receives only one copy of the allele. Thus, half of his gametes would receive the A allele and the other half would receive the a allele.

At a Hypothetical Locus, a Man's Genotype Is Aa