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Describe briefly about the reduction division or meiosis.

(OR) 

Why meiosis is also known as reduction division? Comment on it.

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1. Meiosis occurs only during the formation of gametes in sexual reproduction. 

2. During meiosis only one set of chromosomes are passed on to the daughter cells. Hence daughter cells have half the number of chromosomes of the mother cells.

3. In meiosis karyokinesis and cytokinesis occur two times. 

4. During first phase of meiosis the parent cell divides twice, though the chromosomes divide only once.

5. The second phase meiosis is similar to normal mitosis, but chromosomes do not duplicate more over the chromosome number distributed equally to each cells. 

6. Thus the four daughter cells have just half the number of chromosomes of the parent cells.

7. These are haploid (containing only one set of chromosomes). 

8. Thus meiotic division is also called reduction division.

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