Question

a point mutation changes the dna sequence cga to cgt, but the same protein is still produced. which point mutation occurred? nonsense missense silent frameshift

Explanation:

A silent mutation is a type of point - mutation where the change in the DNA sequence does not result in a change in the amino - acid sequence of the protein, as the new codon codes for the same amino - acid. In this case, the mutation from CGA to CGT does not change the protein produced, which is characteristic of a silent mutation. Nonsense mutations introduce a stop codon, missense mutations change the amino - acid, and frameshift mutations shift the reading frame of the codons.

Answer:

C. silent