The addition or deletion of a nucleotide base pair can result in a ____.point mutationsilent mutationframeshift mutationnonsense mutation

To determine the correct answer, let's analyze the options provided in the context of genetic mutations.

Understanding Genetic Mutations

1. Point Mutation: This type of mutation involves a change in a single nucleotide base pair. It can lead to a change in a single amino acid in the protein sequence, but not always.

2. Silent Mutation: This is a specific type of point mutation where the change in a nucleotide does not result in a different amino acid being produced. Thus, it does not affect the overall protein.

3. Frameshift Mutation: This type of mutation occurs when nucleotide base pairs are added or deleted, causing a shift in the reading frame of the genetic code. This typically results in a completely altered protein.

4. Nonsense Mutation: This is another type of point mutation that results in a premature stop codon, leading to a truncated protein.

Analyzing the Given Scenario

The question specifies that a nucleotide base pair is either added or deleted. Adding or deleting nucleotides affects the reading frame of the genetic code, which is characteristic of a frameshift mutation.

Final Answer

The addition or deletion of a nucleotide base pair can result in a frameshift mutation.