Thursday, December 10, 2009

Eye color?

If parent one has hazel eyes and parent two has green eyes or brown eyes what color will the baby's eyes be?Eye color?
Not easy to predict, eye colour is inherited by the interaction of several genes. Generally speaking dark eyes dominate light eyes. Hazel eyes are a combination of light and dark, green eyes are light and brown eyes are dark, although brown eyed people often carry both light and dark genes.





The link below is a suggested inheritance model for eye colour. It assumes there are six genes for colour and colour depends on how many of the six are dominant -- the more dominants the darker the eye. Using your example and this model, the hazel eyed parent has 3 dominant genes and 3 non dominant genes; the green parent has 2 dominant and 4 non dominant genes and the brown parent has 4, 5 or 6 dominants depending on shade of brown.





The baby inherits 3 genes from each parent. The hazel eye parent will provide 0,1, 2 or 3 dominants. The green parent will provide 0, 1, or 2 dominants. The brown eyed parent will provide 1, 2, or 3 dominants.





Hazel/green offspring can then have between 0 to 5 dominants yielding range of colours from light blue to brown. Hazel/brown offspring will have between 1 to 6 dominants yielding range of colours from blue to dark brown.





So with a combination of hazel with green or brown, virtually any colour eye is possible in their baby.Eye color?
I have hazel eyes (green-brown) my X **** brown. My oldest daughter has hazel (green-honey).My youngest has hazel (green-blue-gray).
The babies eyes will be blue. Almost every baby has blue eyes until it develops its pigmentation. Probably will end up with green/hazel or brown. Not blue.

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