Which one is a hereditary disease?
(a) cataract
(b) leprosy
(c) blindness
(d) phenylketonuria.
ANSWER:
(d) phenylketonuria
Phenylketonuria could be a genetic disease. PKU is Associate in Nursing familial error of metabolism caused by a deficiency within the accelerator essential amino acid hydroxylase. It leads to backwardness Associate in Nursing is familial as an chromosome recessive attribute. it's a hereditary human condition ensuing from the lack to convert phenylaline into aminoalkanoic acid. this variation is copied to a little mutation in a exceedingly single factor on body twelve
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