In a monohybrid cross,if the P generation consists of plants that are true breeding (one is homozygous dominant,the other homozygous recessive)then the F2 generation will consist of organisms that exhibit what ratio of dominant phenotypes to recessive phenotypes?
A) 3:2
B) 1:2
C) 1:3
D) 3:1
E) None of these

Question

Quizplus · Accepted Answer

In a monohybrid cross between two true breeding parents (one homozygous dominant, the other homozygous recessive), all the F1 offspring will be heterozygous for the trait. When the F1 offspring are allowed to self-fertilize, the resulting F2 generation will show a characteristic 3:1 dominant to recessive phenotypic ratio. So, choice D is the best answer.

In a Monohybrid Cross,if the P Generation Consists of Plants