Question

In the first generation, a homozygous/dominant , tall plant is crossed with a homozygous/recessive, short plant. What is the probability a 2nd generation plant will be tall?

Answer 1

If TT homozygous/dominant tall plant is crossed with tt homozygous/recessive short plant, the result is:

All offspring will have the T allele which means the probability of being tall. . This is 50% chance of being tall. 50/50 ratio.

This is the F1 generation.

In the second generation plant the probability of tall offspring is 3:1.