13. Mendelian Genetics
Autosomal Inheritance
Multiple Choice
Multiple ChoiceThe genetic disease cystic fibrosis is caused by a defective allele that __________.
A
encodes a dysfunctional enzyme that fails to break down brain lipids
B
causes hemoglobin molecules to malfunction
C
encodes a neurotoxin
D
encodes an enzyme that breaks down muscle fibers
E
encodes a defective chloride-channel membrane transport protein
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