[rbg81]

People with African ancestry actually have close to 0.5 percent Neanderthal DNA in their genome. The study also found that Neanderthal DNA makes up roughly 1.7 and 1.8 percent of the European and Asian genomes, respectively.

From:
https://www.smithsonianmag.com/smart-news/new-research-expands-neanderthals-genetic-legacy-modern-humans-180974099/

[Aevery_Freeman]

<>"Chimp and human genomes are very similar and encode very similar proteins. The DNA sequence that can be directly compared between the two genomes is almost 99 percent identical. When DNA insertions and deletions are taken into account, humans and chimps still share 96 percent of their sequence."<>

Small differences in genotype can spell big differences phenotype.