Neanderthal genetics

[genio]

It's indicated online that 1–4% of the genome of modern non-African humans is Neanderthal DNA but this doesn't make sense when both Neanderthals and earlier-Sapiens both evolved from a common ancestor.

Are the 1-4% Neanderthal genes what is left over after they've subtracted the identical DNA?

If yes, what is the percentage of homo sapiens genes after we subtract the identical DNA?

Edited May 17, 2023 by genio

[Bufofrog]

12 hours ago, genio said:

It's indicated online that 1–4% of the genome of modern non-African humans is Neanderthal DNA but this doesn't make sense when both Neanderthals and earlier-Sapiens both evolved from a common ancestor

Why do you think it doesn't make sense?  Clearly Homo sapiens sapiens were different sub species than Homo sapiens neanderthals.

Edited May 17, 2023 by Bufofrog

[genio]

4 hours ago, Bufofrog said:

Why do you think it doesn't make sense?  Clearly Homo sapiens sapiens were different sub species than Homo sapiens neanderthals.

What is the African homo lineage called during the time of the Homo sapiens neanderthals lineage?