>>509473360 (OP)Negroes descend from a Para-Eurasian-African lineage. Haplogroup DE, from which haplogroup E, the most common in all of Africa today, derives, emerged in East Africa, which is the closest part of Eurasia, also gave rise to haplogroup D, which is present in populations from Tibet, Japan and the Andaman Islands. After the separation of the oldest African lineages (A and B) and CT, the ancestor of DE, E and non-African haplogroups such as C (Asia, Oceania and America), F (peoples of Europe, South Asia and East Asia), etc.
Their E1b1a subclade expanded across the African continent during the Holocene, migrating mainly to West and Central/South Africa from the Bantu Expansion, where it mixed intensely with Native Ghost African, Pygmy and Khoisan populations that carriers the haplogroups A and B, forming a paternally para-Eurasian-African but maternally native African population. Therefore, despite its origin in the para-Eurasian-African haplogroup DE, E1b1a is not Eurasian, but para (parallel), since it remained and evolved entirely within Africa, without significant contact with Eurasian populations. In contrast, its brother E1b1b (North and East Africa) diverged further when it underwent admixture with the proto-Eurasians within Africa itself, in Northeast Africa, before the dispersal of these populations to the Levant and other regions, and their eventual return to Africa in the Neolithic, which resulted in a genetic makeup with a strong Eurasian influence from its African origins until the Neolithic Revolution.