many different types of mutations can occur within the body. cystic fibrosis is a genetic disorder that is…

many different types of mutations can occur within the body. cystic fibrosis is a genetic disorder that is caused by different mutations within the cftr gene. one mutation in the cftr gene that leads to cystic fibrosis causes translation to end earlier in the gene sequence. which type of mutation causes this translation error that leads to cystic fibrosis?\n○ silent\n○ missense\n○ nonsense\n○ deletion

many different types of mutations can occur within the body. cystic fibrosis is a genetic disorder that is caused by different mutations within the cftr gene. one mutation in the cftr gene that leads to cystic fibrosis causes translation to end earlier in the gene sequence. which type of mutation causes this translation error that leads to cystic fibrosis?\n○ silent\n○ missense\n○ nonsense\n○ deletion

Answer

Answer:

C. nonsense

Brief Explanations:

Nonsense mutations introduce a premature stop - codon, causing translation to end early. This is consistent with the description of the mutation in CFTR gene leading to cystic fibrosis. Silent mutations don't change the amino - acid sequence, missense mutations change one amino - acid, and deletions remove nucleotides but the key here is the early termination which is characteristic of nonsense mutations.