Question

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

missense

silent

Explanation:

A silent mutation is a point mutation where a change in the DNA sequence does not change the amino acid produced (so the same protein is made). Here, the DNA sequence changed from CGA to CGT, but the resulting codon still codes for the same amino acid (due to the redundancy of the genetic code), leading to the same protein. A missense mutation would change the amino acid, which is not the case here.

Answer:

silent