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monoclonal antibodies lies on the principal of producing antibodies and monocloaal means the specificity and avidity for antigen i.i they recognize a single epitope.

firstly the mouse is innoculated with appropriate antigen and spleen cells are isolated from it.

then the myeloma cells grown in vitro and spleen cells which are isolated are fused in the polyethyleneglycol (PEG) and cultured in HAT medium.

the following result comes;

1. spleen cells die in vitro

2. spleen-myeloma hybrid cells survive

3. unfused myeloma cells die in HAT medium

surviving hybrid cells are clonned and used further.

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