Question

Fluorochromes are attached to immunoglobulins to trace the _______________.

• A. Antigen-antibody reactions.
• B. Antibody only.
• C. Antigen only.
• D. None of the above.

Answer 1

The correct option is A Antigen-antibody reactions.

Answer is option A i.e. "Antigen-antibody reactions"
Fluorochrome is a dye used to provide a fluorescent signal to mark the site of antibody-antigen binding. Fluorochromes can be covalently conjugated to antibodies through reactions with thiol or amine groups after which they can be used to locate the site of antigen-antibody reaction.