And I once had a co-worker (male) who was both red-green AND
blue-yellow color blind. We had to come up with creative ways to
describe things, as he pretty much saw things in greyscale. His wife
labeled all his clothes so things would match, and he wore lots of
neutrals (black and khaki).
Sandy
At 08:03 PM 1/28/2007, you wrote:
Date: Sun, 28 Jan 2007 20:26:01 EST
From: [EMAIL PROTECTED]
Subject: Re: [h-cost] Re: color names [Waaaaay OT]
Simplified, we have a blue cone, a green one and a red one. The
gene for the blue cone is on our 7th chromosome so everybody gets
one....well two, one from each parent. But the red and green genes
are right next to
each other on the x chromosome. And actually the red one
"sees" into the green
area and the green one "sees" into the red. We see hues by
the interaction of the
3 cones. All 3 are always involved.
--snip--
Also, there are 2 ways to be color-blind. The green cone or the
red cone can
be improperly copied and because the y chromosome in the male has no back up
pair, like women do on their other x chromosome, the man is
color-blind...red-green color-blind. The other way is for 2 red
cones to appear or 2 green.
Again with no back up pair, the man is again color-blind. This 2 of the same
kind is really rare I think. Women who are as unfortunate to have 2 faulty
sets of Red/green cones on each x chromosome will be color-blind.
I love science!
"Those Who Fail To Learn History
Are Doomed to Repeat It;
Those Who Fail To Learn History Correctly --
Why They Are Simply Doomed.
Achemdro'hm
"The Illusion of Historical Fact"
-- C.Y. 4971
Andromeda
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