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Question

Human cheek cells are commonly stained with

A
Methylene blue
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B
Safranin
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C
Acetocarmine
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D
Eosine
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Solution

The correct option is A Methylene blue
  • Methylene blue is used as a bacteriologic stain and as an indicator.
Methylene blue stains negatively charged molecules in the cell, including DNA and RNA.
  • This dye is toxic when ingested and it causes irritation when in contact with the skin and eyes

So, the correct answer is 'Methylene blue'

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