To observe onion cells under a microscope, which of the following compounds would you use as a dye?

Methylene Blue

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Ethanol

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Methanol

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Safranine

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Solution

The correct option is D
Safranine

Safranine is used to stain onion peel cells. This makes them easily observable under a microscope. It imparts a characteristic pink colour to the cells. Methylene blue is used to impart a blue colour to cheek cells. Ethanol and methanol are colourless alcohols and do not impart any colour to the cells and are not used as stains.

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Question 4

Which of the following stain is not used for staining chromosomes?

(a) Basic fuschsin (b) Safranin

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