SNP
Synonyms:
- Single nucleotide polymorphism
A SNP (Single nucleotide polymorphism) refers to the most common type of genetic variation and is defined by a modification in a single nucleotide in a particular chromosome position (locus). Single nucleotide modifications can occur normally in the genome and it's common to find about 4-5 million single nucleotide modifications in a person's genome that have no impact in the health or development of an individual.1 However, when a single nucleotide modification is found at a specific position in over 1% of the population, it's officially considered a SNP.2
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