Question

Given below is a diagram representing a stage during mitotic cell division. Study it carefully and answer the following questions.
(i) Is it a plant cell or an animal cell ? Give a reason to support your answer.
(ii) Identify the stage shown.
(iii) Name the stage that follows the one shown here. How is that stage identified?
(iv) How will you differentiate between mitosis and meiosis on the basis of the chromosome number in the daughter cells?
(v) Draw a duplicated chromosome and label its parts.

Answer 1

(i) Plant cell because the cell wall is present and centrioles are absent.
(ii) The above diagram shows the late prophase.
(iii) Metaphase follows the prophase. The chromosomes will be arranged at the equator attached to the spindle fibre.
(iv) In Mitosis: The chromosome number in the daughter cell is the same as that of the mother cell i.e., diploid mother cell gives rise to 2 diploid daughter cells.
In Meiosis: The chromosome number is halved in the daughter cells i.e., the diploid mother cell gives rise to four haploid daughter cells
(v) (ref. image)