Question

How many blood groups in the ABO system?



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Answer 1

Answer:

There are four types of blood groups

1. A ( A positive, A negative)

2. B ( B positive, B negative )

3. AB (AB positive, AB negative)

4. O (O positive, O negative)

Hope this helps you.

Answer 2

Explanation:

There are 4 blood groups

A,B,O,AB