Question #9bd27

1 Answer
Anonymous
Dec 27, 2017

The blood group of the samples is O.

Explanation:

Agglutination occurs when an antibody recognizes foreign antigen. If the blood group was A, it would have shown agglutination when antiserum B was added, with antiserum A, it would have shown nothing as such. If the blood group was B, it would have shown no agglutination for antiserum B, but for antiserum A it would have shown agglutination.

This is because the RBC's of a person having blood group A have antigen A on their surfaces, the ones having blood group B have antigen B on the RBC surfaces. These react with foreign antibodies to show agglutination. Whereas people with blood group O do not have any antigens and both antibodies. The ones having blood group AB have both antigens and no antibodies.

Therefore O does not react with the antiserum.

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