GENEALOGY-DNA-L Archives

From:
Subject: Re: [DNA] Expected autosomal block sizes
Date: Mon, 24 Aug 2009 01:22:59 EDT

>To be clearer, as between myself and my first cousins, our fathers
>were 1st cousins (sons of two brothers), and our mothers were sisters.
>I'm wondering if I should expect to learn anything useful from their
>X chromosomes by testing them at 23andme.

-------------

Well, the sons of brothers won't contribute anything to your
X chromosome except for the tips. But if you have a male first
cousin, he will be more like a brother in the inheritance of the sex
chromosomes (X and Y) only. Each mother will scramble
her two X chromosomes before passing one on to her
offspring. You should each get the same Y chromosome.

Kathy J.

This thread:

• [DNA] Expected autosomal block sizes by Anders Pålsen <>
  • Re: [DNA] Expected autosomal block sizes by David Faux <>
    • Re: [DNA] Expected autosomal block sizes by Anders Pålsen <>
  • Re: [DNA] Expected autosomal block sizes by
    • Re: [DNA] Expected autosomal block sizes by Charles Hollenbeck <>
  • Re: [DNA] Expected autosomal block sizes by
    • Re: [DNA] Expected autosomal block sizes by David Faux <>
      • Re: [DNA] Expected autosomal block sizes by Doug McDonald <>
        • Re: [DNA] Expected autosomal block sizes by David Faux <>
          • Re: [DNA] Expected autosomal block sizes by Doug McDonald <>
    • Re: [DNA] Expected autosomal block sizes by Anders Pålsen <>
  • Re: [DNA] Expected autosomal block sizes by
    • Re: [DNA] Expected autosomal block sizes by steven perkins <>
  • Re: [DNA] Expected autosomal block sizes by
  • Re: [DNA] Expected autosomal block sizes by
    • Re: [DNA] Expected autosomal block sizes by steven perkins <>

  • Re: [DNA] Expected autosomal block sizes by

  • Re: [DNA] Expected autosomal block sizes by
  • Re: [DNA] Expected autosomal block sizes by