Generally, a genealogical DNA test might use either autosomal STRs or autosomal SNPs. (STR's are Short Tandem Repeats; SNPs are single-nucleotide polymorphisms.) However, testing companies do not currently offer autosomal STRs tests that use enough STR markers for genealogy.here are three types of genealogical DNA tests, autosomal (atDNA), mitochondrial DNA (mtDNA), and Y-Chromosome (Y-DNA). Autosomal tests for all ancestry. Y-DNA tests a male along his direct paternal line.
Definition of drifter for English Language Learners. : a person who moves from one place or job to another without a purpose or plan.
drifter (Noun) A person who moves from place to place or job to job. drifter (Noun) A type of lightweight sail used in light winds like a spinnaker. drifter (Noun) A driver that uses driving techniques to modify vehicle traction to cause a vehicle to slide or power slide rather than drive in line with the tires. Suggested Resources (0.00 / 0 votes) Rate this definition: