article_snippet.sent: An amazing quirk of genetics means that one sister has black skin and the other is white.
article_snippet.sent: Normally, you would expect both to inherit a mix of black and white genes and be born with a similar skin tone.
article_snippet.sent: But, in odds of a million to one, Baylee (right) has inherited a set of genes for white skin.
article_snippet.sent: And Kendall’s genetic inheritance includes some genes that code for black skin, passed on from her mixed-race father.
article_snippet.sent: Professor Pacey said the girls’ contrasting skin colours are caused by the way the girls parents’ genes were shuffled before being passed on.
highlights_snippet.sent: However, having such contrasting skin tones is still extremely rare .