Question

Translation is the process that takes the mRNA code from transcription and translates it into a protein. Kari and Jamal learn that certain mutations can affect the function of genes. These mutations cause an early stop codon that terminates translation early. Which statement describes how these mutations could affect the production of proteins?

A.
The genes might not be able to produce functional proteins.

B.
The proteins could have their amino acid sequences rearranged.

C.
The genes might begin to produce more proteins than are needed.

D.
The proteins could have their amino acids substituted in the sequences.

Answer 1

A. The genes might not be able to produce functional proteins.

A premature stop codon (nonsense mutation) causes translation to stop early, producing a truncated protein that is often nonfunctional.