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
All red
1 red, 3 white
3 red, 1 white
2 red, 2 white

Answer 1

all red, as no white alleles are present in the parents, and hence cannot be passed on to the offspring.

Showing work- Let R represent the dominant (red) allele:

RR(male) x RR(female) ----> All RR offspring.

Answer 2

Thanks