What type of mutations result in single-nucleotide polymorphisms (SNPs) in a population?Multiple choice question.InversionsPoint mutationsDuplications

1. Break Down the Problem

To determine which type of mutation results in single-nucleotide polymorphisms (SNPs), we need to analyze each of the provided options: Inversions, Point mutations, and Duplications.

2. Relevant Concepts

• Inversions: These mutations occur when a segment of DNA is reversed within the chromosome. They do not typically lead to SNPs, as they involve larger sections of DNA.
• Point mutations: These are changes at a single nucleotide position in the DNA sequence. They can result in SNPs if the mutation is present in a population.
• Duplications: This mutation involves a section of DNA being duplicated. These mutations usually affect larger segments of DNA rather than single nucleotides.

3. Analysis and Detail

• Point mutations specifically alter one nucleotide. If such a change occurs in a DNA sequence that is present in at least 1% of a population's individuals, it can be classified as a SNP.
• Inversions and duplications affect larger segments of DNA and do not directly lead to single-nucleotide changes.

4. Verify and Summarize

From the analysis, it is evident that the correct option is point mutations since they involve the alteration of a single nucleotide, which is the defining characteristic of SNPs.

Final Answer

Point mutations are the type of mutations that result in single-nucleotide polymorphisms (SNPs) in a population.