Home Biology Body Fluids and Circulation Skill Builder What is correct for blood group ‘O’?
Biology Body Fluids and Circulation Skill Builder Single Correct MCQ
Published on: August 12, 2026

What is correct for blood group ‘O’?

A
No antigens but both a and b antibodies are present
B
A antigen and b antibody
C
Antigen and antibody both absent
D
A and B antigens and a, b antibodies

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The correct answer is:
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There are 4 main blood groups and . Your blood type is based on the presence or absence of the and antigens on your red blood cells.
A person who has blood group O will have no antigens, but both antibodies a and b are present against the blood groups A and B .
person who has blood group will have antigens and antibodies A person who has B blood group will have antigens and a antibodies.
person who has blood group will have only and antigens and no antibodies

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