The ability to taste PTC is a dominant trait.If a heterozygote woman has a child with a man who is not a taster,what is the chance their child will be a taster?
A)100%
B)75%
C)50%
D)25%
E)0%

Question

Quizplus · Accepted Answer

Since taste for PTC is a dominant trait and the woman is a heterozygote, there is a 50% chance that she will pass on the dominant allele for PTC taste to her child. The man who is not a taster is most likely homozygous recessive (tt). Therefore, the possible genotypes of the offspring are Tt and tt. Thus, the chance of the child being a taster is 50%.

The Ability to Taste PTC Is a Dominant Trait