One in 10,000 babies is born with the disease phenylketonuria (PKU). PKU is a recessive trait.

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One in 10,000 babies is born with the disease phenylketonuria (PKU). PKU is a recessive trait. What is the frequency of the PKU allele in the population, assuming that the population is in equilibrium? What is the percentage of persons that are carriers (heterozygous) for PKU? Show work.