Answer (1)
26th Dec, 2019
Hello
Blood groups . There are four main blood groups ( types of blood ) – A, B, AB and O. Your blood group is determined by the genes you inherit from your parents. Each group can be either RhD positive or RhD negative, which means in total there are eight main blood groups .
Comments (0)
Related Questions
Which Blood Group Is Universal Donor
129 Views
which ismost common blood group?
78 Views
