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What happens if that black african shares the same common ancestor?
Other explanations,
So why do some few black people have ‘blue eyes’?
One answer, according to scientists, is attributed to genetic mutation or Waardenburg syndrome (WS),which is a rare (1/40,000) disease characterised by sensorineural deafness in association with pigmentary anomalies and defects of neural-crest-derived tissues.
http://afritorial.com/black-people-with-blue-eyes/
Scientists think the blue eyed mutation occurred in somewhere is SE Europe.
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