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Archiver > DNA-NEWBIE > 2008-09 > 1222084395


From: "Bob May" <>
Subject: Re: [DNA-NEWBIE] DNA-NEWBIE Inherited "Stuff"...!
Date: Mon, 22 Sep 2008 21:53:15 +1000
References: <c2b.33f9d74e.36080a63@aol.com>


Joan
both of you are correct
Y is a sex chromosome
X is a sex chromosome
mtDNA is not a chromosome, although it is passed on intacked to all the
children from the mother, but it is only the females who can pass it on. So
it is sex linked but not like the YDNA is.
bob
----- Original Message -----
From: <>
To: <>
Sent: Monday, September 22, 2008 6:36 AM
Subject: Re: [DNA-NEWBIE] DNA-NEWBIE Inherited "Stuff"...!


> Nelda-
>
> mtDNA IS inherited intact and is "sex-linked" just as Y DNA is. It is
> passed
> intact from mother to all her children and then passed down from
> daughters
> to their children through the generations. True that mtDNA is passed via
> the
> X chromosome which both sexes inherit--but is passed along intact and is
> sex-linked in the inheritance pattern.
>
> Joan
>
>
> In a message dated 9/21/2008 4:17:47 P.M. Eastern Daylight Time,
> writes:
>
> Although, about Y-DNA you are correct it is the Sex chromosome, MTDNA IS
> NOT! The Y and X sex chromosomes are found inside the nuculas of the cell.
> MTDNA
> is found outside the nuculas.
>
>
>
>
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