SNP: single nucleotide polymorphism
•DNA single base variations found in >1% of population.
•Abundant: ~15 million per human genome.
•Distribution throughout the genome and with high density.
•More stable and easy to assay compared with microsatellites.
•Potential biallelic markers
•Functional variants: cSNP and rSNP (5% of all SNP).
CD-CV: common diseases - common variants.