By what presence we can say blood group positive
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Blood might look the same and do the same job, but tiny cell markers mean one ... These markers (also called antigens) are proteins and sugars that our bodies ... O positive blood is one of the two most common blood types (the other being A ... cells (type AB blood), your body does not need to fight the presence of either.
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Answer:
it is rhesious protien (Rh factor) present on our RBC's
Explanation:
therefore if a person has positive blood group then he/she may have Rh +ve factor
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