Which of the following is a fatal genetic disease caused by a recessive allele on chromosome 7 that results in lungs and breathing passageways becoming clogged?
A. Huntington disease
B. Tay-Sachs
C. PKU
D. Cystic fibrosis

Question

Which of the following is a fatal genetic disease caused by a recessive allele on chromosome 7 that results in lungs and breathing passageways becoming clogged?
	A.	Huntington disease
	B.	Tay-Sachs
	C.	PKU
	D.	Cystic fibrosis

abhisar · Answer

I think it should be D

rock_mit182 · Answer

i think is 
d, im not quite sure

abhisar · Answer

It  is an autosomal recessive genetic disorder that affects most critically the lungs

anonymous · Answer

thanks both of you c:

abhisar · Answer

It is characterised by cyst formations in the breathing pathway, which makes breathing difficult