What are 2 types of gamete cell division?
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Mitosis and meiosis are sometimes called the two "nuclear division" processes
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You could do a project on the processes of Meiosis and/or Mitosis and how they are similar and different. Meiosis is the splitting of cells for the growth of an organism, and Mitosis is the splitting of a cell into 4 gametes for reproduction of an organism. It's a pretty interesting project.
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female sex cell-gamete-egg cell
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In biology is the process that allows one diploid cell to divide in a special way to generate haploid cells in eukaryotes. The word "meiosis" comes from the Greek meioun, meaning "to make smaller," since it results in a reduction in chromosome number.\n\nMeiosis is essential for sexual reproduction. It therefore occurs in most eukaryotes, including single-celled organisms. A few eukaryotes, notably the Bdelloid rotifers, have lost the ability to carry out meiosis and acquired the ability to reproduce by parthenogenesis. Meiosis does not occur in archaea or prokaryotes, which reproduce by asexual cell division processes.\n\nDuring meiosis, the genome of a diploid germ cell, which is composed of long segments of DNA called chromosomes, undergoes DNA replication followed by two rounds of division, resulting in haploid cells called gametes. Each gamete contains one complete set of chromosomes, or half of the genetic content of the original cell. These resultant haploid cells can fuse with other haploid cells of the opposite gender or mating type during fertilization to create a new diploid cell, or zygote. Thus, the division mechanism of meiosis is a reciprocal process to the joining of two genomes that occurs at fertilization. Because the chromosomes of each parent undergo genetic recombination during meiosis, each gamete, and thus each zygote, will have a unique genetic blueprint encoded in its DNA. In other words, meiosis is the process that produces genetic variation.\n\nBiochemically, meiosis uses some of the same mechanisms employed during mitosis to accomplish the redistribution of chromosomes. There are several features unique to meiosis, most importantly the pairing and recombination between homologous chromosomes, which enable them to separate from each other.
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meiosis ensures that each gamete is a haploid (i.e. has half, or n, chromosomes of a normal cell). when the gametes fuse the zygote becomes 2n like a normal cell. Mitosis produces daughter cells which both have 2n, and these cannot be present in the gametes or else the zygote would have 4n!
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Meiosis: -- One cell becomes 4 cells--There are 4 new "daughter" cells. Each new gamete cell contains only one-half of the number of chromosomes of the parent cell. Each sex cell goes through the division process twice in order to have the correct number of cells, and the correct chromosomal information.\n\nMitosis: -- One cell becomes two cells-- The new "daughter" cell has exactly the same number of chromosomes and information as the "parent" cell. 1 cell divides and becomes 2 cells.
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Remember that meiosis is the formation of gametes from germ cells.  Our bodies begin the process of making germ cells very early in our development, and the precursors to sperm/egg cells are in tact well before puberty.  When a woman ovulates, at the end, four of these egg cells complete the maturity stage in each cycle, but only one survives to become an ovulated egg (accompanied by 3 polar bodies).  This egg (and its complement sperm) have ONE set of chromosomes each, and upon fertilization, the zygote will have 2 copies of every chromosome, one from the sperm, and one from the egg.
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Polar bodies form in meiosis, particularly during meiotic division of sex cells in females.
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There are actually TWO organelles that play a direct role in the process of cell division.\n\nThe centrioles are the structures that establish the poles during mitosis and meiosis. But don't forget the cytoskeleton, which is hugely important during the cytokinesis part of each process.
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Mitosis and Meiosis are the two types of cell divison. \nMitosis:\nhttp://www.cellsalive.com/mitosis.htm\nMeiosis:\nhttp://www.cellsalive.com/meiosis.htm
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Meiosis is the type of cell division by which germ cells (eggs and sperm) are produced. Meiosis involves a reduction in the amount of genetic material
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The process of spermatogenesis involves multiple steps.\nwithin the wall of the seminiferous tubules, spermatigonium will split via mitosis. Each complete spermatogonium, aka primary spermatocyte will undergo meiosis. So one cell undergoes meiosis and produces 2 secondary spermatocytes. But the process is not yet comlete. These secondary spermatocytes must undergo a second meiotic division resulting in 4 spermatids which mature into sperm. \n\nSo for every starter cell, 4 sperms cells are formed at the end of this process.
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Cytokinesis is the process whereby the cytoplasm of a single cell is divided to spawn two daughter cells. It usually initiates during the late stages of mitosis, splitting a binucleate cell in two to ensure that chromosome number is maintained from one generation to the next. One notable exception to the normal process of cytokinesis is oogenesis (the creation of an ovum in the ovarian follicle of the ovary), where the ovum takes almost all the cytoplasm and organelles, leaving very little for the resulting polar bodies, which then die. In plant cells, a dividing structure known as the cell plate forms across the centre of the cytoplasm and a new cell wall forms between the two daughter cells.\nThe big difference between animal and plant cell cytokinesis is that the animal cell develops a cleavage furrow that essentially pinches through the middle of the two new cells that will form two separate new cells.  In plant cells there is a new cell wall that begins to form between the two new forming cells called the cell plate.  This cell plate begins at the center of the two new cells and continues to grow outward towards the existing cell wall, finally dividing the one cell into two.
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When cells undergo meiosis, sometimes the cells divide incorrectly and either, gametes that have abnormal number of chromosomes are formed, or the cell ends up with multiple copies of the genome. Cells that have many sets of chromosomes are said to be undergoing polyploidy. The genetic material has been duplicated and ready for division, but division does not occur, forming a gamete with an extra set of chromosomes.
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Cell division\nMitosis\nMeiosis\nMetabolism\nProtein synthesis\nNucleic acid synthesis\nEnergy transfer to do work\nRespiration\nPhotosynthesis (in plant cells)\nTransport across cell membrane
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Mitosis is a continuous process by which the body grows and dead body cells are replaced, in this type of cell division each "daughter cell " contains  the exact number of chromosomes as the "parent cell" 46 also called the diploid number. The process of mitosis  in sperm is called spermatogenesis  and in the ovum , called oogenesis.\nMeiosis is a different type of cell division where reproductive cells undergo 2 sequential divisions. During meiosis the number of chromosomes is reduced to half, 23 chromosomes also called the haploid number. At the moment of fertilization (when the sperm and ovum unite) the new cell contains 23 chromosomes from the sperm and 23 chromosomes from the ova returning to the diploid number of 46 and both the mothers and fathers traits are inherited by the gamete
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1- Meiosis happens in stem cells that give rise to gametes (sex cells). \nMitosis happens in all other cells.\nIn women every month only one stem cell goes through meiosis forming 4 haploid cells. In men many cells go through meiosis everyday.\nEvery other cell in body goes through mitosis in a daily basis to replace old and dead cell.\n2- Before cell replication starts.\n3- At the end of the prophase (in case of meiosis, end of the prophase 1)\n4- Mitosis: diploid cells; Meiosis: haploid cells\n5- Every thing but cell division: the cell obtain nutrients and when it gets close to cell division, it will duplicate its DNA and other organelles.