Question

round peas are dominate to wrinkled. what would you cross a round pea with to determine if it were heterozygous or homozygous dominate?​

Answer 1

I would cross round peas with round peas to get homozygous alleles of round in the F1 generation (this will also be round peas, genotype - RR)

I would cross round peas with wrinkled to get heterozygous alleles in the F1 generation (Genotype - Rr, this would also be round peas because round trait is found to be dominant)

Hope this helps!