Question

When he crossed those tall plants with each other, 75% of the plants came out _________ and 25% came out ________. This shows that alleles can be ________ even if they are not physically seen.

Answer 1

1. tall

2. short

3. present (?)

This makes sense if the parents are heterozygous for the trait

Example:

Tt x Tt

Kids = TT, Tt, Tt, and tt