Which of the following disorders is caused by a mutation in the gene coding for the enzyme phenylalanine hydroxylase?
Phenylketonuria (PKU) is caused by a mutation in the gene coding for phenylalanine hydroxylase, leading to the accumulation of phenylalanine.
Ref: NCERT Class 12 Biology Chapter 4: Principles of Inheritance and Variation Sex Determination Mutation and Genetic Disorders
