Question

Please help! c:

Answer 1

I think I understand even without the picture. I'll add a picture of the Punnett Square filled in, but what you're crossing is

Tt  x  tt (heterozygous crossed with a homozygous recessive)

The ratio you get in the end is 2 heterozygous (Tt) and 2 homozygous (tt) offspring, so the ratio is 1:1.

So the percentage of offspring that are homozygous recessive is 50%.