Question

In pea plants, the allele for tall plants is dominant to the allele for short plants. If a homozygous tall plant is crossed with a homozygous short plant, what percent of their second generation of offspring would you expect to be short?

Answer 1

POSSIBLE ANSWERS:


0%
25%
50%
100%

Answer 2

25%

Answer 3

If a homozygous tall and homozygous short plant are crossed, there is only one option for their genotype: Tt. If you draw a Punnett square crossing two Tt genotypes, you'll have one TT, two Tt, and one tt genotypes in the offspring indicating a 25%, 50%, and 25% chance for each offspring, respectively