Phenylketonuria (PKU)is a Birth Defect That Causes an Amino Acid

Multiple Choice

Phenylketonuria (PKU) is a birth defect that causes an amino acid called phenylalanine to build up in the body.The frequency of individuals born in a population with PKU is q².There is one PKU (q²) birth per 10,000 births.The frequency of the recessive allele for PKU in this population is q = 0.01.The frequency of the dominant allele in this population is p = 1 - q = 0.99.What is the frequency of carriers (2pq) in this population?

A) 1%
B) 2%
C) 3%
D) 4%