Question

In garden pea plants, the allele for inflated pod shape, I, is dominant over that for constricted pod shape, i. Consider a cross between a garden pea plant that is homozygous for inflated pod shape and a plant that is homozygous for constricted pod shape. What is (are) the only possible genotype(s) of the offspring?

Answer 1

All offspring will be heterozygous, genotype Ii.

Explanation: II parent produces only I gametes and ii parent produces only i gametes, so every zygote receives I from one parent and i from the other. Phenotype: inflated pods.