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HT Histotechnician

Category - Fixation

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Allan understands that this metallic fixative has been discovered to react with viruses.

Potassium dichromate
Osmium tetroxide
Chromic acid
Mercuric chloride

Explanation

Answer: D - Mercuric chloride
The metallic fixative that was discovered to react with viruses is mercuric chloride. This fixative has also been identified to cause the loss of the virulence or the infecting ability of viruses. All the other agents do not have the ability to react to viruses nor inactivate their virulence.

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