Answer all these questions

Dear student,

1. Onion cells under a microscope

2. Methylene blue is used for staining cheek cells.
Methylene blue is a dye that stains the cheek cells so that they can be observed easily. Even iodine can also be used to stain cheek cells if methylene blue is not available.  

3. Safranine may be used to stain onion cells.

4. It is to be made sure that the peel does not dry up. To ensure this, a few drops of glycerine may be added to slide.

P.S. For rest of the questions, kindly post them in a seperate thread.

Regards
 

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