Answer :
Anti-A is contained in antiserum A.
What is ABO blood type?
The AB0 typing test is used to find your blood type. Antibodies against type A and B blood are in combination with a blood sample. The selection is then examined to analyze if the blood cells are sticking together. When the blood reacts with one of the antibodies, the blood cells stick together.
Anti-A, anti-B and anti-A,B reagents are used for the determination of ABO blood group red blood cells. They are used to determine the presence or absence of erythrocyte antigens A and/or B on the surface of human erythrocytes.
Cells have protein molecules called antigens. When an antigen is foreign to the body it responds by producing antibodies against that antigen.
If red blood cells contain antigen A, the body is more likely to have anti-A antibodies than antibody B.
Therefore, the antibodies present in antiserum a are anti-A
To know more about antibodies refer to the link given below,
https://brainly.com/question/3221452
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