Question

Suppose you have monohybrid snapdragons in your garden and you find that they produce red seeds to white seeds in the ratio of 3:1. If the alleles are designated R (red seeds) and r (white seeds), what are the probable genotypes of the snapdragons in your garden?

RR and Rr
RR only
RR and rr
Rr only
rr only

Answer 1

RR rr

Step-by-step explanation:

Answer 2

The best answer in this case would be RR and rr.

Red would be coded by the homozygous dominant RR or the heterozygous Rr but the white would onlyb be coded by the homozygous recessive rr.