DNA, or deoxyribonucleic acid, is the building block of life that is found in almost every cell within the human body. It contains the genetic instructions that make each person uniquely them. DNA testing works by examining specific locations, or markers, within a person's DNA that can reveal ancestral information. Certain genetic markers are characteristic of particular populations a... http://coherentmarketinsights.com/industry-reports/dna-test-kits-market