A Change in a Single Nucleotide That Results in No

question 28

Multiple Choice

A change in a single nucleotide that results in no change in the amino acid sequence of the polypeptide produced is known as a

• A)nonsense mutation.
• B)silent mutation.
• C)missense mutation.
• D)frameshift mutation.
• E)none of the above

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Definitions:

Cell Cycle

The cell cycle is the ordered series of events involving cell growth and cell division that produces two new daughter cells.

Chromosomes

Thread-like structures located in the nucleus of cells that carry genetic information in the form of genes.

Checkpoint Genes

Checkpoint genes are parts of the cellular machinery that regulate the cell cycle's critical checkpoints to ensure accurate DNA replication and division.

BRCA1

A gene located on chromosome 17, playing a critical role in the repair of DNA breaks; mutations can significantly increase the risk of breast and ovarian cancer.