In pea plants, round seeds (R) are dominant over wrinkled seeds (r) and tall plants (T) are dominant over short plants (t). Report the genotypes and phenotypes if you cross a homozygous round seed, heterozygous tall plant with a wrinkled seed, homozygous tall plant, what are the expected genotypes and phenotypes?

Expected genotypes = 50% RrTT and 50% RrTt

Expected phenotypes = All round seeds, tall plants.

Explanation:

Round seeds (R) are dominant over wrinkled seeds (r).

Tall plants (T) are dominant over short plants (t).

Homozygous round seed, heterozygous tall plant = RRTt

Wrinkled seed, homozygous tall plant = rrTT

RRTt   x   rrTT

Progeny:

8 RrTT - round seed, tall plants

8 RrTt - round seed, tall plants

Expected genotypes = 8 RrTT and 8 RrTt

Expected phenotype = round seeds, tall plants.

See the attached image for the Punnet's square result.

sex cells are usually half's then they find another half and make a fertilize egg