What are SNPs?

These point variations are changes in a nucleotide (one of the four types that make up DNA: A, T, C and G). These variations in a single nucleotide are what we call SNPs (Single Nucleotide Polymorphism) or polymorphisms.

These point variations are changes in a nucleotide (one of the four types that make up DNA: A, T, C and G). These variations in a single nucleotide are what we call SNPs (Single Nucleotide Polymorphism) or polymorphisms.