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Which statement about cystic fibrosis is true?

Cystic fibrosis affects a person's ability
to make normal red blood cells.

Cystic fibrosis is caused by a deletion of
one codon in the DNA molecule.

Cystic fibrosis is caused by a mutation in
which a dominant allele replaces a
recessive allele.

Carriers have an advantage over people
who do not have the cystic fibrosis
mutation

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luisvaschetto

The statement 'Cystic fibrosis is caused by a DELETION of one codon in the DNA molecule' is TRUE. This disease can be lethal in advanced conditions.

Cystic fibrosis is an autosomal recessive disease that leads to bronchiectasis, which is a chronic lung condition with an abnormal widening of the airways.

Cystic fibrosis generally involves the deletion of three DNA bases at the 508th codon of the CFTR gene.

The cystic fibrosis transmembrane conductance regulator (CFTR) gene encodes for a channel protein that helps to maintain the normal balance of salts and water on many cell surfaces in the body.

Learn more in:

https://brainly.com/question/4122230?referrer=searchResults

LillyPrince

Answer:

B.

Explanation:

The answer is B) Cystic fibrosis is caused by a deletion of

one codon in the DNA molecule.

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