Assume you had a round seed garden pea plant and you wanted to find out whether the round seed plant was homozygous or heterozygous. What would you do? (Round is dominant to wrinkled seed)

1 answer

Cross it with a wrinkled seed.

rr=wrinkled.

Rr x rr

Progeny: 1 Rr 1 rr

RR x rr

Progeny will all be Rr and will all be Round