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Question

Which stain is used to observe squamous epithelial cells under microscope.


A

Methylene blue

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B

Safarnin

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C

Iodine

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D

Carbamine

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Solution

The correct option is A

Methylene blue


The correct option A.

Explanation for correct option:

  1. Methylene blue is a dye used for staining the tissue of mouth linings i.e. Squamous epithelium.
  2. The dye has ability to stain negatively charged particles like DNA and RNA into the cell.

Explanation for wrong options:

Option B:

Safranin is used for staining onion peel cells.

Option C:

Iodine is used for test of starch presence.

Option D:

Carbamine is the DNA specific dye.

Final answer: Methylene blue is used to observe squamous epithelial cells under microscope.


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