How many different genotypes are possible in any single mature spermatocyte of a man who is heterozygous at a single gene locus for a specific trait?
A)One
B)Two
C)Four
D)Eight

Question

Quizplus · Accepted Answer

The mature spermatocyte is haploid, with only one chromosome of each pair present. It should have only one gene allele. Even though the person is heterozygous for a single gene trait and his diploid cells have two alleles, each mature spermatocyte will have only one. In about half of the mature spermatocytes, one specific allele of the two is present. In the rest of the mature spermatocytes, the other specific allele is present.

How Many Different Genotypes Are Possible in Any Single Mature