A woman who can roll her tongue (presumably dominant)is married to a man who cannot.Two of their four children can roll their tongues and two cannot.If A = roll tongue and a = cannot roll tongue,then what is the genotype of the parents?
A)woman Aa; man Aa
B)woman AA; man aa
C)woman Aa; man AA
D)woman Aa; man aa
E)woman aa; man aa

Question

Quizplus · Accepted Answer

The woman must be heterozygous (Aa) to have children who cannot roll their tongues (aa), and the man must be homozygous recessive (aa) since he cannot roll his tongue.

A Woman Who Can Roll Her Tongue (Presumably Dominant)is Married