Root Tip Squash Practical Quiz

What is the primary reason for using the tip of a garlic root in this practical?

• It is the only root that fits under a microscope.

• It is easy to obtain.

• It contains a meristem where growth occurs.

• It is resistant to staining.

Why is hydrochloric acid used in the preparation of the root tip squash?

• To increase the temperature of the root tip.

• To dissolve the root tip.

• To soften the root tip for easier squashing.

• To stain the chromosomes.

What is the purpose of using acetic orcein in this experiment?

• To make the root tip transparent.

• To prevent the root tip from drying out.

• To increase the magnification of the microscope.

• To stain the chromosomes red for visibility.

What is the main reason for squashing the root tip during the practical?

• To break the root tip into smaller pieces.

• To remove excess stain.

• To create a thin layer of cells for observation.

• To make it fit under the cover slip.

How is the mitotic index calculated in this experiment?

• By counting the total number of cells.

• By measuring the size of the root tip.

• By counting the number of stained cells.

• By dividing the number of cells in mitosis by the total number of cells.