: Laboratories extract DNA and analyze specific regions called Short Tandem Repeats (STRs) or genetic markers.
: Requires a strict "chain of custody," where an unbiased third party verifies identities and supervises collection. These are admissible in court for matters like child support or custody. paternity testing
: The most common method uses a buccal (cheek) swab to collect epithelial cells. While blood samples are also accurate, swabs are preferred for being painless and easier to transport. : Laboratories extract DNA and analyze specific regions
Testing can be categorized by timing and the intended use of the results: paternity testing