Stands for D = DNA, Y = Y-chromosome, S = segment (segment in y-DNA testing means Short Tandem Repeat) A marker on chromosome 1 would be D1Snnn Markers which are found on both the X and Y chromosome are DXYSnnn The numbers after the DYS are arbitrary numbers, assigned in the order that they were discovered From Ann Turner: "A marker on chromosome 1 would be D1Snnn Markers which are found on both the X and Y chromosome are DXYSnnn The numbers after the DYS are arbitrary numbers, assigned in the order that they were discovered " The DYS numbering scheme (e g DYS388, DYS390) for the Y-STR haplotype loci is controlled and administered by an international standards body called HUGO Human Gene Nomenclature Committee based at University College, London
(number) - DNA Y Chromosome unique Segment, also known as microsatellite loci (pronounced "lo-see" In Europe and "lo-si" in the US) The numbering scheme is controlled by the HUGO standards body These loci are where the genotyping takes place, however caution is advised when comparing results between different labs Labs can now provide results for at least 10-12 loci, and new tests are now available for more than 20
the Greek &?; hard, ill, and signifying ill, bad, hard, difficult, and the like; cf
dys
Telaffuz
Etimoloji
(prefix.) Middle English dis- bad, difficult, from Middle French & Latin; Middle French dis-, from Latin dys-, from Greek; akin to Old English tO-, te- apart, Sanskrit dus- bad, difficult.