SNP Array

An SNP array is a laboratory tool used to examine a person's DNA for small genetic variations called single nucleotide polymorphisms (SNPs). These variations are frequent differences in the DNA sequence among individuals. The array can analyze thousands to millions of SNPs simultaneously, providing detailed information about genetic risks for certain diseases, inherited traits, or ancestry. It works by hybridizing DNA to a chip with known SNP sites, allowing precise detection of these tiny genetic differences. SNP arrays are valuable for research, diagnosis, and personalized medicine by offering a comprehensive genetic snapshot.