What are single nucleotide polymorphisms (SNPs)? - MedlinePlus
https://medlineplus.gov:443/genetics/understanding/genomicresearch/snp/
WEBMar 22, 2022 · Single nucleotide polymorphisms, frequently called SNPs (pronounced “snips”), are the most common type of genetic variation among people. Each SNP represents a difference in a single DNA building block, called a nucleotide. For example, a SNP may replace the nucleotide cytosine (C) with the nucleotide thymine (T) in a certain …
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