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    Gernald's Avatar
    Gernald Posts: 901, Reputation: 93
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    #1

    Nov 12, 2007, 08:22 PM
    Blood.can you tell
    Is there any specific way to tell if you have homogeneous or heterogeneous blood?
    Like if you have A positive can you tell if it's AA or Ai (I for O blood type)?
    J_9's Avatar
    J_9 Posts: 40,254, Reputation: 5642
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    #2

    Nov 12, 2007, 08:26 PM
    Type and cross match should tell you.
    Gernald's Avatar
    Gernald Posts: 901, Reputation: 93
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    #3

    Nov 12, 2007, 08:29 PM
    Thanks.
    Is there any other way though, one that a person without acces to a hospital lab can figure out?
    J_9's Avatar
    J_9 Posts: 40,254, Reputation: 5642
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    #4

    Nov 12, 2007, 08:31 PM
    Nope there isn't. This is what the lab does when one has blood taken for many reasons.
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    J_9 Posts: 40,254, Reputation: 5642
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    #5

    Nov 12, 2007, 08:38 PM
    Is there a reason you need to know? Typically they do this with pregnancy to rule out ABO Incompatibility.
    Gernald's Avatar
    Gernald Posts: 901, Reputation: 93
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    #6

    Nov 13, 2007, 08:45 PM
    No just curious.
    I'm in biology and we're learning about genetic crosses and stuff like that, and that question was killing me all day.
    J_9's Avatar
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    #7

    Nov 13, 2007, 08:47 PM
    LOL, been there done that!! Just let me know if you have any other questions.
    jem02081's Avatar
    jem02081 Posts: 65, Reputation: 19
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    #8

    Nov 25, 2007, 08:50 AM
    The kinds of tests used to determine your blood type are qualitative tests (Is the A antigen present or absent?). They are not designed to tell the difference between AA & AO – both are blood type A. What you're asking for is a genetic test. The easiest way is to find out the blood type of your parents (or your children). If one of your parents or children is blood type O then you'll have proof that you're heterozygous for this gene.
    ane's Avatar
    ane Posts: 27, Reputation: 0
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    #9

    Dec 31, 2007, 09:16 PM
    Thanks for everybody that give us a correct answer and help us... thanks once again.
    asking's Avatar
    asking Posts: 2,673, Reputation: 660
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    #10

    Jan 6, 2008, 12:24 AM
    Quote Originally Posted by jem02081
    The kinds of tests used to determine your blood type are qualitative tests (Is the A antigen present or absent?). They are not designed to tell the difference between AA & AO – both are blood type A. What you’re asking for is a genetic test. The easiest way is to find out the blood type of your parents (or your children). If one of your parents or children is blood type O then you’ll have proof that you’re heterozygous for this gene.
    Point of interest (maybe): I was working with some college biology teachers once, and they said they don't like to do labs where the students do things like this, because occasionally it turns out that a student is not related to one of their parents. I was kind of shocked, but they said any genetic test that could possibly reveal that someone is not their parents' offspring is a big no no in genetics labs because of the potential for upsetting the student.
    J_9's Avatar
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    #11

    Jan 6, 2008, 09:19 AM
    This is absolutely right Asking. My A&P instructor used to do blood typing in Lab, but quit when one of his students found out, quite accidentally, that he was adopted. All blood typing as since ceased at my college.
    asking's Avatar
    asking Posts: 2,673, Reputation: 660
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    #12

    Jan 6, 2008, 09:37 AM
    Wow. What a way to find out. :(
    Gernald's Avatar
    Gernald Posts: 901, Reputation: 93
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    #13

    Jan 7, 2008, 08:20 PM
    Yea I thought about that too.
    It would really stink wouldn't it to find out that way.
    The way I see it though is my mom is A my dad's O so even if I'm not related to my dad I won't be able to tell (I hope).
    It's one of those things you wouldn't want to know isn't it?
    We were learning genetic crosses not using our own blood though and most people don't know there own blood type let alone there families type.
    Interesting though, thanks for posting that.

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