In a monohybrid cross AA × aa, what proportion of homozygotes is expected among the F₂ offspring? A)1/4 B)1/2 C)3/4 D)All are homozygotes. E)None are homozygotes.

Question

Quizplus · Accepted Answer

In a monohybrid cross AA × aa, the F1 generation will all be heterozygotes (Aa). When these F1 individuals (Aa) are crossed, the F2 generation will have a genotypic ratio of 1:2:1 (AA:Aa:aa), meaning 1/4 will be AA and 1/4 will be aa, totaling 1/2 homozygotes.

In a Monohybrid Cross AA × Aa, What Proportion of Homozygotes