Question

With the following crosses of pea plants, give the flower color of offspring and the ratio expected (red is dominant).
A cross of red x red (both homozygous) would result in

3 red, 1 white
2 red, 2 white
1 red, 3 white
all red

Answer 1

If both are red homozygous then F1 is 100% red too, according to the first Mendel´s law.

Answer 2

Both homozygous red means their genotype would have been RR and RR (Assume that R is for red)
So when we cross a similar homozygous genotypes we will get the same results.

Answer 3

I hope you got it !