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it is a part of blood group. 95% people are Rh +ve, only 5% people are Rh negative.
i think that 15% of people in the whole world have this blood group
yes
at least one of them have negative group.
no
no
a positive
95% not.
No. The Rh Negative blood group is formed by an absence of the Positive factor.
There are some African American people who have 0 negative blood. But they have the same blood types as any other group.
yes it can be possible too as the parents is already with an o blood group..
O negative blood type can take only from O negative. but in emergency cases if the O negative is not available, doctors give you O positive, and treat that with immune-suppressants.