Question

Given below is a diagram representing a stage during mitotic cell division. Study it carefully and answer the questions that follow :

(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 Cell wall present and Centrioles absent. 

(ii) Prophase. 

(iii) Metaphase: The chromosomes will be arranged at the equator attached to the spindle fibre. 

(iv) In Mitosis : The chromosome number in daughter cell is 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)