1.Why do we need to stain some of the cells with a dye like iodine or methylene blue? What color do you think the cells would be without the dye?

We need to stain cells to look them clearly under the microscope; else we will not be able to differentiate cells. If we do not stain, cell would look transparent.

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This is because if we observe the cells, they are generally transparent. If we do not stain the cells with a dye, it will look transparent .

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