SNP arrays

SNP arrays are a technology used to analyze genetic variation across an individual's genome. They detect specific points known as single nucleotide polymorphisms (SNPs), which are single-letter changes in DNA sequence that can influence traits or disease risk. By comparing these variations, SNP arrays help identify genetic predispositions, understand ancestry, or assist in medical diagnosis. The process involves applying a chip with many known SNP markers to a DNA sample, allowing rapid, high-throughput testing. Overall, SNP arrays are powerful tools for studying genetic differences and their implications for health and biology.