Question

"Phenylketonuria is a good example that explains Pleiotropy", Justify.

Answer 1

Pleiotropy is the phenomenon in which the single gene has multiple effects on a phenotype. The common example of pleiotropy is phenylketonuria. There is a single gene which can control the various chemical reactions involved in the metabolism of phenylalanine. Mutation in the gene can result in phenylketonuria (PKU).