A male fruit fly has the genotype PpYYrrTt.In terms of these 4 allele pairs,how many different types of gametes can he form?
A)2
B)4
C)8
D)16

Question

Quizplus · Accepted Answer

The male fruit fly can form 4 different types of gametes because the alleles for Y and r are homozygous (YY and rr), so they do not provide any variation in gametes. The alleles Pp and Tt are heterozygous, each providing two possibilities (P or p, T or t), leading to 2 x 2 = 4 different combinations.

A Male Fruit Fly Has the Genotype PpYYrrTt