To determine:
The mechanism of meiosis that results in haploid gametes production.
Introduction:
Meiosis is a type of cell division that causes the formation of gametes. In this process, the number of chromosomes is decreased into half of the initial chromosome number, which makes up the haploid gametes.

Explanation of Solution
An animal is multicellular organism and contains a diploid number of chromosomes, which is each parent cell contains a diploid number of chromosomes. In order to produce haploid gametes, the division of cell should be in such a manner that half of the number of chromosome or each copy of a chromosome is present in daughter cell.
The meiosis is divided in two phases, meiosis I and meiosis II. The Meiosis I is the reductional division and in the metaphase I of meiosis I, the sister chromatids containing identical genes are separated, which result in formation of the haploid cells.
So, the parent cell which contains a diploid number of chromosomes undergoes meiosis that is reduction division. This results in gamete production which is haploid in nature containing half number of chromosomes to that of the parent chromosome.
Both male and female produce gametes haploid gametes. Only gamete production stage in animals is the phase which is haploid in nature. Now, when male and female gametes fuse they again produce a diploid zygote.
By reductional division durinng meiosis I, haploid gametes are produced containing half number of parent chromosome.
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Chapter 22 Solutions
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