why is mitosis important to an organism?
86161
Mitosis is the scientific name for standard, non sexual cellular replication.  It is important for two main reasons.\nFirstly without the ability to make more cells we would never grow and would remain as a zygote (technical name for an egg cell after it has been fertilised by a sperm) untill we died (which proably wouldn't take too long!)\nSecondly we need to be able to replace lost cells.  Cells are pretty special and can live for a very long time, especialy concidering their size!  But they will eventualy die, without a mechanism for replacing them each cell lost would be a cell lost forever.
250737
See the following link for an animation and explanation of Mitosis. Hope that helps. \n\nIn most cases mitosis occurs by the parent cell diving into daughter cells (usually 2).\n\nhttp://www.cellsalive.com/mitosis.htm
738369
Cytokinesis isn't truly mitosis or interphase, but a stage of it's own. It happens at the end of mitosis and is often included in explanations of mitosis.
885455
G'day Joanne F,\n\nThank you for your question.\n\nIt is essential if you are studying medicine to have a good understanding of how cells and tissues work. It is also useful to know how particular cells such as blood cells work.\n\nRegards
488648
Mitosis is the process of dividing a parent cell to make two daughter cells.\nFirst the Centrioles move to the opposite sides of the cell\nthe nuclear membrane dissolves, and the spindle fibers begin to form.(Prophase)\nSecond the chromosomes line up in the center of the cell.(Metaphase)\nThird the centromere breaks up and the spindle fibers pull apart the chromosomes.(Anaphase)\nFourth the nuclear membranes begin to reform, and the nucleus is formed on each cell.(Telophase)\nFinally the cellular membrane separate and 2 daughter cells are formed.(Cytokinises)
850029
It has to undergo mitosis so it can develop more cells.
113165
Mitosis occurs pretty much everywhere, the two major exceptions being red blood cells and nervous tissue. Aside from that name any living tissue in your body and there is mitosis occuring.
736225
Mitosis describes the process by which the nucleus of a cell divides to create two new nuclei, each containing an identical copy of DNA\nMeiosis, is the process by which certain sex cells are created. If you're male, your body uses meiosis to create sperm cells; if you're female, it uses meiosis to create egg cells
364043
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.
739107
NO! Every multicellular eukaryotic organism on earth has mitosis.
893531
In biology, meiosis 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.\n\nMeiosis facilitates stable sexual reproduction. Without the halving of ploidy, or chromosome count, fertilization would result in zygotes that have twice the number of chromosomes than the zygotes from the previous generation. Successive generations would have an exponential increase in chromosome count, resulting in an unwieldy genome that would cripple the reproductive fitness of the species. Polyploidy, the state of having three or more sets of chromosomes, also results in developmental abnormalities or lethality.\n\nMost importantly, however, meiosis produces genetic variety in gametes that propagate to offspring. Recombination and independent assortment allow for a greater diversity of genotypes in the population. As a system of creating diversity, meiosis allows a species to maintain stability under environmental changes.
11603
I'm sorry I don't see a picture of anything. Would you care to edit your question?\n\nMitosis- http://en.wikipedia.org/wiki/Mitosis\nMeiosis- http://en.wikipedia.org/wiki/Meiosis\n\nHope they help.
233562
mitosis:the process in cell division by which the nucleus divides, typically consisting of four stages: prophase, metaphase, anaphase and telophase.\n\nmeiosis: (genetics) cell division that produces reproductive cells in sexually reproducing organisms; the nucleus divides into four nuclei each containing half the chromosome number (leading to gametes in animals and spores in plants) \n\nosmosis:Transmission of fluids from one cell into another; foundation of metabolism, led by the concentration of salt within a cell. Water can penetrate cell membranes, and strives to, where the concentration of salt is highest, in order to equalize the salt concentration in the body.
766661
do you mean what processes cells must undergo? \n\nIf that's your question, then the processes would be cell division by mitosis (to produce more cells, so that organism can increase in size/length), cell elongation(this occurs mainly in plants via vacuolation and thus aids in increase in size and length) and cell differentiation(this allows genes to be switched on or off so that certain traits/phenotypes can be expressed, eg. gene that codes for blue eyes switched on for cell in the eye and not elsewhere like cell on the hand/feet). Hope this answers your question.
79598
Both previous answers are inaccurate.\n\nMitosis is sometimes called growth division. In plants and animals new cells are made continually. Mitosis results in two new cells identical genetically to the original which divided.\nWe are diploid animals which have 23 pairs of chromosomes. After mitosis both cells still have 23 pairs of chromosomes.\n\nMeiosis is a division which produces sex cells (sperm or ova). After division is complete, each sex cell has half the number of chromosomes; it is haploid. So instead of having 23 pairs the sex cells will have 23 chromosomes - one of each type of chromosome.
862246
look at your body. When you grow, cells divide and grow almost every second mitosis occurs in yuor own self. that is how you grow, repair yourself, and improve your general figure.
792899
mitosis is the normal mode of cell multiplication and increasing there number without a change in their constiution so it occurs in all the SOMATIC CELLS (normal cells of body not involved in sexual reproduction).\nmeiosis occur in gamete forming cells as it is the reductoinal division