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The sex cells that contain only half of the normal number of chromosomes called the haploid number (the symbol is n) In humans, the female gamete is called an ovum or egg, while the male gamete is called the sperm Meiosis, division of a germ cell involving two fissions of the nucleus and giving rise to four gametes, or sex cells, each with half the number of chromosomes of the original cell

The process of meiosis is characteristic of organisms that reproduce sexually and have a diploid set of chromosomes in the nucleus. Gametes are specialized sex cells that contain half the number of chromosomes of the parent During meiosis one cell divides twice to form four daughter cells

Meiosis can be divided into nine stages.

To achieve half the number of chromosomes, the germ cells (the cells that form sperm and eggs) undergo a process called meiosis In human meiosis, each of the resulting cells has only one of each of your 23 chromosome pairs instead of 23 complete pairs of chromosomes. In meiosis i, a pair of homologous chromosomes separate to produce two diploid daughter cells, each having half the number of chromosomes as the parent cell In contrast, during meiosis ii, sister chromatids separate to produce four haploid daughter cells.

The formation of sex cells is a central part of human reproduction In fertilization, an egg cell and a sperm cell combine These sex cells are also called reproductive cells or gametes Sperm cells are produced in men's testicles and egg cells are produced in women's ovaries

Sex cells are different from other cells in one special way

Put simply, they only have one half of the total amount. The cell divides twice to form four gametes, each with a single set of chromosomes ( haploid close haploida sex cell (gamete) that contains one set of chromosomes In meiosis, a specialized cell division process, two rounds of division result in four daughter cells with half the number of chromosomes as the parent cell. The daughter cells are haploid (n), having half of the chromosome number of the original cell, which is diploid (2n)

Meiosis produces sex cells, while mitosis replicates cells from growth and repair.

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