Eye Color

11 - 20 of 25 Answers

October 21, 2009: Can two parents with blue eyes have a child with brown eyes?
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June 22, 2009: We have green eyed identical twin girls. At birth their eyes were brilliant blue and they slowly changed to brilliant green. At 14 their eyes are still green. My husband and I have dark brown eyes. There are blue on both sides of the family. The girl's maternal great-grandmother had blue eyes and their paternal grandmother had grey/blue eyes. But there are no green eyes to our knowledge going back three generations. Where does the green come from?
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May 21, 2009: My parents are both brown eyed. I have blue eyes and I am Mexican American. Can you help me figure out how to compile my Punnett square to determine the probability that resulted in my blue eyes?
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March 26, 2009: I have blue eyes and my mom has blue and my dad green. My husband is Vietnamese and no one in his ancestry has ever mixed racially. His entire family has brown eyes. I used your eye color calculator on the Understanding Genetics website and it said that our next child could have about a 16% chance of blue, 16% chance of green and 66% of brown. My friend said the site is wrong and that we could never have a blue or green eyed child. I don't care either way, but I'd love to know if she's right as I have mixed friends with green and blue eyes with no known blue or green eyed family.
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September 21, 2007: Are gray eyes the same as blue in terms of genetics?
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June 28, 2007: I read your article entitled Don't it make your brown eyes blue? Blue eyes are caused by changes in the OCA2 gene and found it extremely interesting. I have another combination to throw into the mix. Can you explain the genetics of an individual with one blue eye and one brown eye? David Bowie is one of these individuals.
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December 20, 2006: How is it possible that I have blue eyes when my father has brown and my mother green? My grandma on my dad's side had blues and ONE of my uncles does, as well, but I don't know how I got the gene for blue if my Dad's genotype is Bb and my mother's is Bg.
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June 2, 2006: Why did the very blue eyes of a kid become brown when he grew up?
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June 23, 2005: Has any progress been made in explaining eye colors other than brown, blue, and green? I've seen dozens of explanations of how the gey (EYCL 1) and bey2 (EYCL 3) genes are supposed to work, all with the disclaimer that this model doesn't explain colors such as hazel, grey, or black (not to mention violet, yellow, or very pale blue). Are the pigments responsible for some of these colors thought to be related to specific genes? Can there be more than two alleles for a gene, such as green, hazel, or blue? Has anybody studied the heritability of unusual eye colors?
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October 14, 2004: I hope that your explanation can clear up some confusion in my family. I have brown eyes and my husband has blue eyes. We have 3 daughters: one has blue eyes, one green and one brown. Everybody says husband,s genes are stronger so that explains the blue and green, but what about the brown?
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