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 being produced, so the same protein is still made. In this case, the change from CGA to CGT in DNA does not alter the protein, which is characteristic of a silent mutation. Nonsense mutations create stop codons, missense mutations change the amino - acid, and frameshift mutations shift the reading frame of the genetic code.

Answer:

C. silent