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Archiver > GENEALOGY-DNA > 2004-01 > 1073094419


From: Amelia <>
Subject: Re: [DNA] Question for you scientists! Off-Topic
Date: Fri, 02 Jan 2004 17:46:59 -0800
References: <20040102175408.45719.qmail@web41206.mail.yahoo.com>
In-Reply-To: <3FF5C853.000001.01856@computer>


The mitochondrial DNA (mtDNA) everyone gets from their mother - it can be
tested.
And... haha... who says I'm not a clone of my mom!!! I've got
about 2 attributes from my dad's side - the rest is all Mom. We were just
recently looking at family photos, and old photos of my mom kept popping
up, which everyone thought looked exactly like me. So if ever needed, I
have many photos of myself in the 1940s-1960s (before I was a twinkle in my
daddy's eye). <wink>
My uncle and cousin hadn't seen me in about 10 years, and both of
them can't get over how much I'm like my mom -- they commented on voice,
mannerisms, etc. too.
On the other hand, she and I both look like her dad. Interesting
to see where the path of the X-chromosomes go... who has more recombination
than who... and which X chromosome of the 2 muscles its way up to the top.
Along with this, we find there is a very strong gene for simple
congenital ptosis... pictures show it going back at least 7
generations. You'd think it would get watered down over time... or lost
somewhere... but it's holding on tight! Came all the way over from
Cumbria, England.
Well, that's enough from me for now. Sorry if I've offended
anyone with my being tickled for a moment!! Just having a quick bit of fun.
Take care!
-- Amelia
P.S. -- as far as maternal contribution to ethnicity, etc... It's true. If
you look at it, an X chromosome is dominant to a Y chromosome. A son's
features are more likely to resemble that of his mother (there are always
exceptions). In a female, there are two (supposedly) equally-dominant X
chromosomes vying for the top of the mix. I know many "real life" examples
of this that are remarkable... but it's not part of the standard DNA that
can be readily and reliably tested right now.
P.P.S. -- before I get attacked... I'm not "supposing" that there are 2
X-chromosomes to a female... I'm "supposing" that both X chromosomes are
equally-dominant. (Sorry... I could feel the heat of the
misinterpretations already.)

>So, tell me, why can't that second X
>be tested as it has to be different from
>Mom's X, or you'd be a clone of Mom!!
>And, why aren't any tests being done with
>the first "X"....Mom's contribution?
>Seems to me that Mom has SOMETHING
>to do with the offspring's DNA ethnicity,
>and makeup, doesn't she?
>Looks like maybe we're being a wee bit
>chauvinistic in research here, aren't we?


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