The Consequences of a Recessive Metabolic Disorder Such as PKU

Multiple Choice

The consequences of a recessive metabolic disorder such as PKU can be counteracted with a modification in dietary intake,making PKU a good example of

A) the benefits of having a dominant masking gene.
B) the benefits of having an unexpressed recessive gene.
C) how the phenotype and environment interact to affect the genotype.
D) how the genotype and environment interact to affect the phenotype.