Question

A tall pea plant results from a dominant tall allele while the short phenotype results from two recessive alleles. What is the frequency of short offspring (pp) when a tall pea plant (Pp) is cross-pollinated with a short pea plant (pp)?(1 point)
Responses

0.5
0.5

0.75
0.75

1.0
1.0

0.25
0.25

Answer 1

0.5

Explanation: Cross Pp × pp gives offspring genotypes Pp and pp in a 1:1 ratio, so 50% (0.5) will be short (pp).