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Defining mutations. P303 or S135 (G2a2b2a) In human genetics, Haplogroup G-P303 ( G2a2b2a, [2] formerly G2a3b1) is a Y-chromosome haplogroup. It is a branch of haplogroup G (Y-DNA) (M201). In descending order, G-P303 is additionally a branch of G2 (P287), G2a (P15), G2a2, G2a2b, G2a2b2, and finally G2a2b2a.
G2A may refer to: G2A - a video games website. LNWR Class G2A. Haplogroup G2a. A version of the Soko G-2 Galeb. A G protein-coupled receptor that is also termed GPR132. Category: Letter–number combination disambiguation pages.
In human genetics, a human Y-chromosome DNA haplogroup is a haplogroup defined by mutations in the non- recombining portions of DNA from the male-specific Y chromosome (called Y-DNA). Many people within a haplogroup share similar numbers of short tandem repeats (STRs) and types of mutations called single-nucleotide polymorphisms (SNPs).
The most common Y-chromosomal haplogroup among the Svans is G2a (90%), in the second place is the Y-chromosomal haplogroup R1a (5%), in the third place is the Y-chromosomal haplogroup J2a1 (about 3%). Among mitochondrial haplogroups H (17.9%), K (15.8%), W6 (13%), T (9.24%), U1 (7.61%), X2 (6, 52%), U2 (5.98%) are common haplogroups.