Which of the following genotypes would not usually be represented in a gamete?
A)AA
B)AB
C)Ab
D)aB
E)ab

Question

Quizplus · Accepted Answer

The genotype AA represents homozygosity for a particular gene. Homozygous individuals have two identical alleles for that gene. In meiosis, homologous chromosomes separate, and only one copy of each chromosome goes into a gamete. Therefore, a homozygous individual will only produce gametes with one allele, in this case, all gametes produced by an AA individual will have an A allele. Therefore, the genotype AA would not be represented in a gamete.

Which of the Following Genotypes Would Not Usually Be Represented