SNP array

See also: DNA microarray and SNP genotyping

In molecular biology, SNP array is a type of DNA microarray which is used to detect polymorphisms within a population. A single nucleotide polymorphism (SNP), a variation at a single site in DNA, is the most frequent type of variation in the genome. Around 335 million SNPs have been identified in the human genome,[1] 15 million of which are present at frequencies of 1% or higher across different populations worldwide.[2]

  1. ^ "dbSNP Summary". www.ncbi.nlm.nih.gov. Retrieved 4 October 2017.
  2. ^ The 1000 Genomes Project Consortium (2010). "A map of human genome variation from population-scale sequencing". Nature. 467 (7319): 1061–1073. Bibcode:2010Natur.467.1061T. doi:10.1038/nature09534. ISSN 0028-0836. PMC 3042601. PMID 20981092.{{cite journal}}: CS1 maint: numeric names: authors list (link)