Question

which activity will you do to observe this cell?​

Answer 1

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Peel off a leaf from half a piece of onion and using the forceps, pull out a piece of transparent onion peel (epidermis) from the leaf. Put the epidermis in the watch glass containing distilled water. Take a few drops of safranin solution in a dropper and transfer this into another watch glass.

Answer 2

Methylene blue is used to stain the nucleus while observing cheek cell. It has a strong affinity for both DNA and RNA which causes clear staining of nucleus and increases its visibility under microscope.