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Thread: blood type

  1. #1 blood type 
    Forum Sophomore An inconvenient lie's Avatar
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    becuase there is A B and AB blood types how did tyupe O blood come out?


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  3. #2  
    Universal Mind John Galt's Avatar
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    Mutation.


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  4. #3  
    Forum Sophomore An inconvenient lie's Avatar
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    be more specific
    http://whatreallyhappened.com/WRHART...alwarming.html
    Global warming is an inconvenient lie!

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  5. #4  
    Moderator Moderator TheBiologista's Avatar
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    Quote Originally Posted by An inconvenient lie
    be more specific
    Type O is merely the lack of expression of the A or B antigens. Most likely came about due to a deletion mutation in an A or B individual, resulting in the antigen either being chopped such that the extracellular part is not expressed or messed up enough that it can't be transported to the cell membrane. That's speculation, but there are many similar ways it could have come about.
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  6. #5  
    Universal Mind John Galt's Avatar
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    Quote Originally Posted by An inconvenient lie
    be more specific
    I was leaving that as an exercise for the student. :wink:
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  7. #6  
    Forum Sophomore CShark's Avatar
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    Actually, A, B, and O are names given to specific antigens on red cells. O is simply the lack of any of the others, which is why I can say my children cannot be type O, as I am AB.

    These groups are only four of the most common, e.g. Rh factor (positive or negative), Kell, Duffy, etc. From what I recall of my early training, there are dozens.

    I hope this helps
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