________ Occurs as ________ Builds Up in the System If $\begin{array} { l }A&E_A&B&E_B&C\\\text { (phenylalanine) }&\longrightarrow&\text { (tyrosine) }&\longrightarrow&\text { (melanin) }\end{array}$

Multiple Choice

________ occurs as ________ builds up in the system if Enzyme A is nonfunctional because of an inherited mutation. $\begin{array} { l }A&E_A&B&E_B&C\\\text { (phenylalanine) }&\longrightarrow&\text { (tyrosine) }&\longrightarrow&\text { (melanin) }\end{array}$

A) albinism; melanin
B) xeroderma pigmentosum; tyrosine
C) phenylketonuria; phenyalanine
D) androgen insensitivity; tyrosine