The probability of obtaining a dominant phenotype from self-fertilization of a heterozygous individual is
A)25%
B)50%
C)75%
D)100%

Question

Quizplus · Accepted Answer

A heterozygous individual (Aa) self-fertilized will produce offspring with genotypes AA, Aa, and aa in a ratio of 1:2:1. The dominant phenotype will be expressed in AA and Aa genotypes, which together account for 75% of the offspring (3 out of 4).

The Probability of Obtaining a Dominant Phenotype from Self-Fertilization of a Heterozygous