What is the purpose of using polyspecific and monospecific antisera in the identification of blood group antibodies?

A To detect the presence of warm autoantibodies
B To differentiate between IgM and IgG antibodies
C To identify the specific blood group antigen involved ✓
D To determine the zygosity of an individual's blood group genes

Explanation

Polyspecific and monospecific antisera are used to identify the specific blood group antigen involved in an antibody-antigen reaction, allowing for accurate identification of blood group antibodies.

Source

Clinical Laboratory Standards Institute
Hematology Hematology: Blood Grouping and Crossmatching Hematology: Blood Grouping and Crossmatching Medium MEDICAL Confidence: high