Question

Which of the following is a genetic disorder carried by a recessive allele that can cause severe mental retardation if a strict diet is not followed and affects approximately one child out of every 15,000?
A. Huntington disease
B. Tay-Sachs
C. PKU
D. Cystic fibrosis

Answer 1

It's PKU or phenyl ketone uria

Answer 2

Patients who are diagnosed early and maintain a strict diet can have a normal life span with normal mental development. Huntington's and Tay-sach are also neuro generative disease but they can not be treated with Strict diet

Answer 3

got it ?

Answer 4

It's PKU

Answer 5

thnx