What is the Difference Between SNP and Mutation?

🆚 Go to Comparative Table 🆚

A Single Nucleotide Polymorphism (SNP) and a mutation are both genetic variations, but they differ in their frequency, cause, and effect. Here are the key differences between SNPs and mutations:

  • Definition: SNP is a change in a single nucleotide of a genome, and it is a type of mutation. Mutation is a variation in DNA base pairs caused due to insertion, deletion, duplication, or substitution of base pairs.
  • Frequency: SNP variation is present in at least 1% of the population. Mutation frequency is found in less than 1% of the population.
  • Cause: SNPs are single-nucleotide substitutions that occur in more than 1% of the population. Mutations can be caused by various factors, such as environmental exposure, replication errors, or damage to the DNA molecule.
  • Effect: SNPs are often subtle and contribute to genetic diversity. Mutations can have profound effects on health and evolution.

In summary, while SNPs and mutations both involve alterations in the DNA sequence, they differ in their frequency, cause, and effect. SNPs are common and contribute to genetic diversity, while mutations can have more significant impacts on health and evolution. Both SNPs and mutations are essential in genetic research, helping scientists understand the genetic basis of diseases and traits.

Comparative Table: SNP vs Mutation

Here is a table comparing the differences between SNPs and mutations:

Feature SNP (Single Nucleotide Polymorphism) Mutation
Definition A change in a single nucleotide of a genome, which is a type of mutation. A change in the DNA sequence due to insertion, deletion, duplication, or substitution of base pairs.
Frequency SNPs are very common and present at a frequency of more than 1% in a population. Mutations are very rare and are present at a frequency less than 1% of a population.
Impact SNPs usually have a minor impact on the coding sequence and can be associated with disease. Mutations can cause structural and functional changes in genes, leading to significant differences in the next generations.
Occurrence SNPs are a specific type of mutation that involves a single change in the DNA. Mutations include single to many nucleotide changes and can be caused by mistakes in DNA replication or external influences.

To summarize, SNPs are a specific type of mutation that involves a single change in the DNA sequence and are common in a population, while mutations are changes in the DNA sequence that can be rare and have varying impacts on the genes.