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Archiver > GENEALOGY-DNA > 2006-05 > 1147112740


From: "Ken Nordtvedt" <>
Subject: Re: [DNA] Brown eyes
Date: Mon, 8 May 2006 12:25:40 -0600
References: <445F86A5.2020804@charter.net> <445F89F9.3010905@kerchner.com>


Except for the brown dominance gene. It seems to obey the behavior rules of
a single dominant gene except in less than 1 percent of the cases there is
an epistatic gene which suppresses expression of the brown gene, so a person
in that infrequent case would show blue eyes even though having a brown
gene.


----- Original Message -----
From: "charles" <>
To: <>
Sent: Monday, May 08, 2006 12:12 PM
Subject: Re: [DNA] Brown eyes


> John:
>
> Here is a webpage about eye color inheritance. Multiple genes are
> involved. The link is in my DNA Testing Info and help page.
> http://www.athro.com/evo/gen/inherit1.html
>
> Charles Kerchner
> http://www.kerchner.com/dna-info.htm
>
> John Lerch wrote:
>> It seems as if there is one gene that is indeed dominant for brown
>> eyes--if you've got it, you're brown-eyed and there is no problem with
>> your having a blue-eyed child, since you could be heterozygous; but there
>> are many degrees of brownness, from near hazel to almost black. As a
>> consequence, I've had no problem with citations that two blue eyed people
>> can indeed have a brown eyed child. I take that to mean just barely
>> brown eyed--on the verge of hazel--not the per.......ity eyes that
>> someone complimented my daughter on once. (Don't recall the southern
>> expression for that variety of sparkling brown.)
>
>
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