AP BIOLOGY

Detailed explanation-1: -A silent mutation (quiet mutation) is a form of mutation that does not cause a major change in the amino acid. As a result, the protein remains active and functional. Because of this, the changes are viewed as though they are neutral in terms of evolution.

Detailed explanation-2: -Silent mutation: Some mutations that change DNA bases do not have any effect on the sequence of amino acids in the protein. These mutations are called silent mutations and they do not affect the structure or function of the protein because there is no effect on the amino acid sequence.

Detailed explanation-3: -Silent mutations occur when the change of a single DNA nucleotide within a protein-coding portion of a gene does not affect the sequence of amino acids that make up the gene’s protein.

Detailed explanation-4: -Point Mutations A nucleotide change in the DNA that does not result in an amino acid change in the protein is called a “synonomous” or “silent” mutation (see Figure 3.3).

Detailed explanation-5: -Silent mutations are mutations, or changes, to a gene’s DNA sequence that have no effect on the amino acid sequence coded for by that gene; they are called silent because their effect cannot be heard.