Question

In pea plants, the allele for round seeds is dominant to the allele for wrinkled seeds. If a plant that is heterozygous for seed type is crossed with one that has only homozygous wrinkled seeds, what percent of their offspring would you expect to have wrinkled seeds?

Answer 0%
25%
50%
100%

Answer 1

Step-by-step explanation:

the correct answer is 50%

Answer 2

The answer is 50%
A - allele for round seed
a - allele for wrinkled seed

The cross is:
Parents: Aa x aa
Offspring: Aa Aa aa aa

So, aa will have wrinkled seed, and there are 2 of 4 offspring with aa genotype. 2/4 = 0.50 = 50%