AP BIOLOGY

Detailed explanation-1: -A single point mutation could have no effect, or it could alter the protein that is produced and render it useless. Point mutations are sometimes caused by mutations that spontaneously occur during DNA replication.

Detailed explanation-2: -A silent mutation does not affect the functioning of the protein. A single nucleotide can change, but the new codon specifies the same amino acid, resulting in an unmutated protein. This type of change is called synonymous change since the old and new codon code for the same amino acid.

Detailed explanation-3: -Which characteristic is not true of a point mutation? A point mutation always produces a change in the amino acid sequence in a protein.