Question

In humans the ability to roll your tongue is a dominant trait. If Jean Poole, who is heterozygous and can roll her tongue, and Reece Granger, who can roll his tongue but is homozygous have a child, what will be the genotypic and phenotypic ratios for their offspring possibilities?

Answer 1

JP Aa, RG AA

Aa x AA

F1: AA AA Aa Aa (1:2 Aa and 1:2 AA)

All of the offspring (100%) would be able to roll their tongues