The genotype and phenotype ratio for the first cross will be 100% Rr and 100% round, while the second cross will be 1RR:1Rr, 50/50 round and wrinkled respectively.
Assuming that the seed shape allele is R(r).
For the first cross: RR x rr
Rr Rr Rr Rr
Genotype ratio = 100% Rr
Phenotype ratio = 100% round
For the second cross: RR x Rr
RR Rr RR Rr
Genotype ratio = 1RR : 1Rr
Phenotype ratio = 50% round and 20% wrinkled.
More on monohybrid crosses can be found here: https://brainly.com/question/1185199
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