How can the genetic mutation found with cystic fibrosis (CF) be characterized?
1. There are many variations in the mutation.
2. CF is the most common fatal childhood inherited disorder.
3. The mutation is a dominant trait.
4. The mutation stops ciliary function.
a. 1, 2
b. 3, 4
c. 1, 3
d. 2, 3, 4
A
There are many variations in the genetic mutation that causes CF, the most common childhood inherited disorder. The defective CF gene is recessive, not dominant. It causes the dehydration of secretions. The cilia are normal.
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