*~*~*~* asked in Science & MathematicsMedicine · 1 decade ago

Does blood type O- have a positive or negative Rh factor?

Or can you only know with a blood test?

9 Answers

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  • 1 decade ago
    Favorite Answer

    If you look at your question you really answered it yourself!!

    O- has a Neg. Rh. Factor

    Just as O+ would have a Pos. Rh. Factor.

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  • Som™
    Lv 6
    1 decade ago

    First of all I would like to make it clear that ;

    poster has mentioned!! Its a common Misconception.

    It has all the antigens against blood groups A,B,AB.

    Thus an O group donates to an O group only!

    __________ ________ _________ ___________ _________

    Rh is the term usedto refer to all of the antigens of the Rhesus blood group system - the five main rhesus antigens (C, c,D, E and e) as well as many other less frequent antigens. The terms Rhesus factor and Rh factor are equivalent and refer to the Rh D antigen only!

    Individuals either have, or do not have, the Rhesus factor (or Rh D antigen) on the surface of their red blood cells. This can be indicated with a plus (+) or minus (−) suffix after the ABO blood type (ie A- or O+)

    BLOOD TYPE O- DOESNOT HAVE Rh D antigen;

    IT HAS THUS A "NEGATIVE Rh factor"

    ______ ______ __________ _______ _______ ______

    You can only know it by blood testing... no other alternative!

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  • Anonymous
    1 decade ago

    RH factor is separate from the blood type. All blood types have either a + or - Rh factor. O negative is considered the universal Donor as it can be given to anyone without having to worry about a mismatch.

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  • 3 years ago

    Your ex can not be both effective and negative even through blood transfusions... He often is the basically man or woman on the planet with this blood crew lol x he has that incorrect. He might want to easily be o effective or negative. The rh ingredient is basically once you've the hint of a protein on the floor of a blood cellular, therefore you're both effective or negative at the same time as examined for this protein. As for your daughter the basically way that she will be a good is that if both one or both one among you has a type blood crew. desire this helps

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  • 1 decade ago

    Blood type O- stands for Genotype ''O'' and Rhesus (or Rh) ''negative''. Thus it is a negative Rh factor. Hope that answers your question.

    Source(s): Cousin is medical student.
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  • 1 decade ago

    The - in "O-" means negative Rh factor.

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  • 1 decade ago

    no, blood groups depend on a type of protein on RBCs surface

    but negative or positive Rh depend on another type of protein also on RBCs surface

    So blood type O may be negative or positive Rh

    We can know it through a specific test

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  • 1 decade ago

    definitely negative Rh factor.. ABO Blood type "O"

    and Rh type "-" (negative)

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  • Anonymous
    1 decade ago

    I`m o negative,so when someone tells me i`m negative i say it`s in my blood.

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