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A person with unknown blood group under ...

A person with unknown blood group under ABO system, has suffered much blood loss in an accident and needs immediate blood transfusion. His one friend who has a valid certificate of his own blood type , offers for blood donation without delay. What would have been the type of blood group of the donor friend ?

A

Blood group AB

B

Blood group O

C

Blood group A

D

Blood group B

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Verified by Experts

The correct Answer is:
B
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TRUEMAN BIOLOGY-BODY FLUIDS AND CIRCULATION-Multiple Choice Questions
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  2. Which is the first Heart sound ?

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  4. Which one of the following is the main graveyard of RBC :-

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