The given diagram shows a stage during mitotic division

Basic Biology (10)

The given diagram shows a stage during mitotic division in an animal cell:

  1. Identify the stage. Give a reason to support your answer.
  2. Draw a neat labelled diagram of the cell as it would appear in the next stage. Name the stage.
  3. In what two ways is mitotic division in an animal cell different from the mitotic division in a plant cell
  4. Name the type of cell division that occurs during: A. Growth of a shoot B. Formation of pollen grains.

Answer

(i) Prophase.

Chromosomes have duplicated, nuclear membrane is disappearing, nucleolus has disappeared

(ii) Stage Metaphase, No. of chromosomes, Position of chromosomes

(iii) Animal cell

1. Asters are formed.

2. Cytokinesis by formation of  furrow in the cytoplasm.

3. Occurs in most tissues of the Whole body.

Plant cell

1. Asters are not formed

2. Cytokinesis by cell plate Formation.

3. Occurs mainly at the at the growing tips and sides.

(iv) A. Mitosis B. Meiosis

  • Exam Year: 2016