BT Haplogroup also known as
Haplogroup YxA (SRY10831.1 (SRY1532), M42, M94, M139, M299) is a
Y-chromosome Haplogroup.
Haplogroup BT split off from
haplogroup
A 70,000 years ago, probably originating in North East Africa from
Y-chromosomal Adam. It contains all living human Y-DNA Haplogroups except for
A.
Haplogroup B (M60) (Africa, especially the Pygmies and Hadzabe)
Haplogroup T - (North Africa, Horn of
Africa, Southwest Asia, the Mediterranean, South Asia); formerly known as
Haplogroup K2
