Biology Experimental Skills · Question 2

Best material for the study of mitosis in laboratory is

1. anther
2. root tip
3. leaf tip
4. ovary.

Answer

(2) root tip

Solution

Mitosis is studied in tissues where cells are actively dividing by mitosis.

⇒ The root tip (e.g. onion root tip) has the apical meristem, whose cells divide continuously by mitosis, and it is easy to grow, fix and squash.

∵ Anther and ovary are the sites of meiosis (microsporogenesis and megasporogenesis), and a leaf tip has mostly mature, non-dividing cells.

∴ The best material for the study of mitosis in the laboratory is the root tip.

Answer: (2)