In the ABO system, blood group ‘O’ is characterized by the:

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Question:
 In the ABO system, blood group ‘O’ is characterized by the:

1.presence of antigen O

2.presence of both antigen A and antigen B

3. absence of both antigen A and antigen B

4.presence of antigen A and absence of antigen B

Posted Date:-2021-02-22 13:33:52

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