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So I know this person, not personally, but they have one green eye and one blue eye. So I guess they carry both recessive genes for blue and green, right? But is there a more dominant eye color of these recessive eye colors? Which is more likely to occur in offspring? Blue eyes? Green eyes? Or both?

Biology
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Was this person a female, by any chance? I ask because quite a few eye color genes (there are more than 15 and of those fifteen there are many variants or alleles) are X linked, or if not located on the X chromosome then controlled by protein products of genes on the X chromosome. Cells can only live with one active X chromosome - two affects the dosages of gene products in bad (read 'lethal') ways, so in all the cell lineages that form during development, one of the two X chromosomes compacts itself into a little package and sits idly by. It is incredible that females don't wind up looking like patchworks anyway as that is what they are - it's just that one X chromosome (with the blue set of alleles) got inactivated in the cell line which gave rise to one eye and the other X chromosome (with the green set of alleles) got in the other eye.
And which occurs in her offspring depends on which X chromosome she passes on to them. Equal probability, I'd say. The kid with the green X would have green eyes and the kid with the blue X would have blue eyes - dependent of course on what they get from their Dad. The question is whether the odd pattern of X inactivation is itself X dependent, in which case she would be more likely to have children with mixed eye colors. And that I don't know off the top of my head but I can definitely read up on.
But only if those children of hers were girls. Boys only have the one X, so no inactivation occurs.

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Oh ok. So the probability of the males having these type of mixed eye color thing going on is zero?
Or close to zero?
If X inactivation is actually the cause of it, yes, zero. Females have two X chromosomes, but only one can be active so the other shrivels up as discussed above. Males have an X and a Y, so no need for the second (missing) X to be inactivated. Mom passes of the two X chromosomes onto all offspring. And that X will either have the blue set of genes or the green set of genes.
Ok I'm about to give you a medal. lol. Nice information hector :)
My pleasure. You should come to bio more often. :D
Just in case you wanted to look at this
Oh that's totally whacked.
I'll link to it in the Feedback thread so they find it.
lol but really good information on the genetic stuff. I really liked in when I took just that one biology class. We made babies with other students in the class. My family had two moms because there were too many girls in the class.
What a cute lab. We shook a paper bag full of alleles and made baby dragons in ours...
i wanted to know what @myininaya was talking about so...
on a related question @hectoroftroy is it possible to have a green eye AND a blue eye?
yes i seen it before
wow that's cool...having two of the coolest eye colors...i'd love to be just blue eyed though..*sigh* if only snatching eyes was legal :(
I have blue eyes :)
perfect >:))))) *hisssss*

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