AP BIOLOGY

Detailed explanation-1: -Nonsense mutation: A nonsense mutation is also a change in one DNA base pair. Instead of substituting one amino acid for another, however, the altered DNA sequence prematurely signals the cell to stop building a protein. This type of mutation results in a shortened protein that may function improperly or not at all.

Detailed explanation-2: -Missense Mutation A missense mutation is a DNA change that results in different amino acids being encoded at a particular position in the resulting protein.

Detailed explanation-3: -A point mutation occurs in a genome when a single base pair is added, deleted or changed. While most point mutations are benign, they can also have various functional consequences, including changes in gene expression or alterations in encoded proteins.

Detailed explanation-4: -A nonsense mutation, or its synonym, a stop mutation, is a change in DNA that causes a protein to terminate or end its translation earlier than expected.

Detailed explanation-5: -Answer and Explanation: If one amino acid in a protein sequence is changed the protein could change its function or become non-functional entirely. Amino acids make up the structure of proteins. If even one amino acid is changed, the three-dimensional structure of the protein can change, thus changing its function.