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*** When linked to a marking agent (e.g. a fluorescent dye), an antibody can localise its antigen in the tissue.
 
*** When linked to a marking agent (e.g. a fluorescent dye), an antibody can localise its antigen in the tissue.
 
* '''Electronmicroscopy'''
 
* '''Electronmicroscopy'''
** Electronmicrosopcy shows fine detail of the surfaces or internal structures of cells.
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** Electronmicroscopy shows fine detail of the surfaces or internal structures of cells.
 
* '''Bacteriology/ Virology/ Parasitology'''
 
* '''Bacteriology/ Virology/ Parasitology'''
 
** These techniques allow the isolation and identification of pathogenic bacteria, viruses and parasites.
 
** These techniques allow the isolation and identification of pathogenic bacteria, viruses and parasites.
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