Question

In a project work, the onion peel slide prepared by Nehal Hassan , which he stained with iodine solution and then second slide he stained with ethylene blue. He observed that different regions got diffrent colours. Answer the following:- 1. Why there was the need to stain the peel? 2. Can he use both the stains as a replacement of each other??

Answer 1

1. The onion peel was stained so that the cells of peel would be visible.

2. Nehal Hassan should use Ethylene Blue or Methyl Blue.