What are the basic points to remember on how to use a microscope?​

Always start with the low power objective lens. Center the specimen on the stage until it is directly under the low power objective lens. Keep the specimen in place with the stage clips. As you look through the lenses at the specimen, center the specimen within the 'field of vision' (the circular area of what you see).

Explanation:

chromosomes carry the genetic information for organisms. also, chromatin is the thread like dna which is located in the nucleus of an organism.