HT Histotechnician

Category - Staining

The staining done by Janus Green B to demonstrate mitochondria is an example of what type of staining method?
  1. Vital staining
  2. Counterstaining
  3. Direct staining
  4. None of the above
Explanation
Answer: A - Vital staining
The staining done by Janus Green B to demonstrate mitochondria is an example of vital staining. In this method, living cell constituents are selectively stained to demonstrate cytoplasmic structures and pre-existing cellular components. All the other options do not accurately describe the type of staining that Janus Green B demonstrates.
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