Duba zuwa sashi na ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda sashi: Passage: A subclade na B4b (wanda wani lokacin ake lakafta shi B2) yana ɗaya daga cikin haplogroups biyar da aka samo a cikin 'yan asalin ƙasar Amurka, sauran su A, C, D, da X. Tambaya: Subclades nawa ne na B4b?
biyar