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  • Half siblings child

    Hi,

    I've had a match on ancestry that says 1st cousin but on contact she can't be. I think instead that one of her parents may actually be my half sibling. The match is 1033 cm with 30 DNA segments. She is trying to get the raw data.

    It means about the 13% shared so would this be right for a half niece?

    Thx.

  • #2
    It looks like a 1st cousin the other one you described would be way less and that amount is perfect for 1st cousin

    Originally posted by kathh13 View Post
    Hi,

    I've had a match on ancestry that says 1st cousin but on contact she can't be. I think instead that one of her parents may actually be my half sibling. The match is 1033 cm with 30 DNA segments. She is trying to get the raw data.

    It means about the 13% shared so would this be right for a half niece?

    Thx.

    Comment


    • #3
      Possible relationships for 1033cM are

      Great Grandparent - Average 881cM(464 – 1486)
      Great Aunt/Uncle - Average 914cM (251 – 2108)
      Half Aunt/Uncle - Average 891cM (500 – 1446)
      1st Cousin - Average 874cM (553 – 1225)
      Half Niece/Nephew - Average 891cM (500 – 1446)
      Great Niece/Nephew - Average 914cM (251 – 2108)
      Great Grandchild - Average 881cM(464 – 1486)

      https://dnapainter.com/tools/sharedcm

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      • #4
        Thank you.

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        • #5
          I thought I'd just pop in and update this. It turns out the woman is my half niece. Her dad hasn't tested but he has a genetic eye condition that my children have that only affects 3/100,000 people so the likelihood of him not being our half brother is slim
          Last edited by kathh13; 22nd November 2017, 04:22 PM.

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          • #6
            My half great nephew and I share 575 cMs.

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