Answer :
Answer:
The correct option is A) the gene that codes for an important cell membrane protein .
Explanation:
Cystic fibrosis can be described as a condition which arises when a mutation occurs in the CTFR gene takes place. The CTFR gene codes for CTFR proteins. CTFR proteins can be described as proteins present in the transmembrane. These proteins are transmembrane regulators. In cystic fibrosis, the person is not able to produce the CTFR protein at all or makes abnormal CTFR protein. As a result, a thick and sticky mucus is generated.
Answer: give this person brainliest
Explanation:
he has earned it i just made a 100% and he helped in that