Haplogroup R1a
Haplogroup R1a (R-M420), is a human Y-chromosome DNA haplogroup which is distributed in a large region in Eurasia, extending from Scandinavia and Central Europe to Central Asia, Siberia and South Asia. The R1a (R-M420) subclade diverged from R1 (R-M173) 15-25,000 years ago, its subclade M417 (R1a1a1) diversified c.