Question

A heterozygous pea plant is crossed with another heterozygous pea plant. What percentage of the offspring will be short?

Answer 1

Easy peasy! 25%

Explanation:

So Tt is heterozygous, yes?
In this question you are crossing two heterozygous plants.
So, Tt x Tt

Therefore, to be short, a plant must have a homozygous recessive genotype. And as seen in the Punnett Square, 1 in 4 is tt (short).
So, 1 in 4 as a percentage, 25%