What is meiosis ? What is diploid ? What is haploid ? How are they related ? Explain briefly . thnx :)

Dear Student

A haploid cell is one which contains only one set of chromosomes. It is represented by 'n'. Example of haploid cells are: Sperm and ovum in humans.

A diploid cell is one which has a pair of chromosomes and is represented by '2n'.
Example: The human zygote is a diploid cell. It is formed by the fusion of two haploid cells (namely, the sperm and ovum).

Mitosis and meiosis are the two types of cell division.

Mitosis is the type of cell division in which the number of chromosomes in the parent cell and the daughter cells remain same. It occurs in all cells other than reproductive cells. It is also called equational division.

Meiosis is the specialized kind of cell division that reduces the chromosome number by half (thus called reductional division) resulting in production of haploid daughter cells (gametes). It mainly takes place in the reproductive cells or sex cells. 

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