The ability to curl one's tongue into a U-shape is a genetic trait.Curlers always have at least one curler parent but noncurlers can have one or both parents who are curlers.Using C and c to symbolize the alleles that control this trait, what is the genotype of a noncurler?
A)CC
B)Cc
C)cc
D)Cc or CC
E)Any of the answers could be correct.

Question

Quizplus · Accepted Answer

If a noncurler has both noncurler parents, then they must have two recessive c alleles for not expressing the trait. Thus, the genotype of a noncurler is cc.

The Ability to Curl One's Tongue into a U-Shape Is