spores on sori of ferns

Biology

BIOLOGY PRACTICAL ACTIVITIES

BIOLOGY PRACTICAL ACTIVITIES.

Examining the stages of mitosis

About 2 mm of a root tip of onion bulb is cut off and placed on a microscope slide.
A stain e.g. aceto-orcein is added and the root tip macerated using a scapel.
A cover slip is added and observations made.
Different stages of mitosis can be observed.