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Define Antigen and Antibody. Name any two diagnostic kits based upon them.
Answers (1)
Antigen: A foreign substance, that elicits an immune response from the body, is called an antigen.
Antibody: A protein, that is synthesized in response to an antigen in the body, is called an antibody.
Two diagnostic kits; based on antigen and antibody are as follows:
(a) ELISA kit- It is used for the detection of HIV/AIDS infection.
(b) Pregnancy test kit - detects the presence of HCG hormone in the urine of a pregnant female.
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