(Gametogenesis) is a process in living organisms. This cell division and causes a different kind of mother cell (gametocyte) has two sets of chromosomes (diploid) or one (haploid) to become germ cells (gamete) with one set of chromosomes. The heterogeneity caused by cell division, meiosis (meiosis), or mitosis (mitosis), depending on the life cycle of the organism itself. Divided into two types:
1. Males called. Spermatogenesis (Spermatogenesis) takes place on the testes
in humans and other vertebrates, the sperm in the testicles where sperm are particularly tubes in the testicles on each side. Inner tube sperm cells that have not changed. Each cell is called Spurs alloy Motoko (Spermatogonium) cells, these cells are diploid. The division is mitosis. To increase the number Spurs Motoko foil any time in the embryo and early childhood. When juveniles Spurs Motoko alloys are also split. However, approximately half of these cells is changed by a larger cell and then change the Site Master Spurs first phase (Primary spermatocytes, 2n) these cells divide and form meiosis. In many animals, such as the creation of sperm in some season in the fall or spring. But then the sperm born the year. Each day millions of sperm created
Spurs's site early each cell division meiosis I. Spurs come to the site's second phase (Secondary spermatocytes), which is a stone's hair cells. In the division of meiosis II. Spurs Site Master Phase two waves, each cell will divide the Spurs Doan (Spermatid) in two cells, each cell of a Spurs Doan still a hash Diploid cells. Spurs masters like cell sites for a second term. So if you start from Spurs's first term, one cell site to cell 4 Doan Spurs
Spurs Doan has changed. (Differentiate) become sperm shape. (Spermatozoa) by switching from Spurs Doan with large cell cytoplasm and more sperm. Starting with smaller nuclei. The Golgi apparatus is acrosome (Acrosome) enzymes that help the sperm penetrate the egg. In the cytoplasm smaller 2. The female is called egg (oogenesis) occur on the ovaries to generate eggs in the ovaries (Ovary) cells which have CPO Kobe Steel. (Oogonium), a diploid cell. In the prenatal stage, the ovaries of the female fetus cells COO Global aluminum lot. Oh Gold alloys are cell division, mitosis is constantly increasing the number of O Grove, suitable for all the time. Some cells of the O Gold alloys are changed by a larger, called oocytes first phase (Primary oocyte) is diploid cells with large nuclei. When divided meiosis I. cells with two cells of different size is called a cell. Phase II oocytes (Secondary oocyte) and small cell called Mahdi's Laboratories (Polarbody) both cells are cells at Harry Stone. When the two cell division meiosis II are large cells is one cell egg cell (Ovum) and the other three cells are small cells Lap York Post, which is responsible for about breeding. For the egg cells to grow further. Including a compilation yolk And other nutrients that the embryo must be applied to growth. So the comparison between sperm and egg cells. You will see that eggs are larger. But to a larger extent depend on the amount accumulated in the yolk itself in mammalian milk, including most of the people. The female reproductive cells from a baby in the womb until birth. To the oocyte the early stages without creating more. Distance to the animal or person that developed the reproductive phase. When young girls into adulthood (Puberty) oocyte meiosis stages to break the oocyte but stop just for a second term only. Until the sperm nucleus is split into meiosis II on. The first ovulation of young people born after menarche 2-3 years and 14-15 years old the first time since ovulation until menopause around the age of 45-50 years when a young male. Spurs Site Master will first be created at any time. During reproduction, until his death in patients that fall within the oocyte from the ovary second term. When the sperm into the mix It is divided meiosis II next. The lives of women have no more than 400-500 eggs at the start when the baby is seven months pregnant with follicular cycle in the ovary of about one million, most follicular cycle. will decompose When infants are left with about two hundred to four hundred thousand leaves the ovary on each side of her youth (aged 10-14 years), each side will have ovarian oocytes initially estimated two hundred thousand leaves when they are older. Oocytes is reduced.
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