Question about cell division please help..hwk problem?
401082
1 day = 24 hours = 48 cell divisions\n\n3 x (2 to the 48th power) = 844,424,930,131,968 cells
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2 cell divisions\nMeiosis I and Meiosis II
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Using the Michaelis-Menten equation.\n\nMore details on teh attached link\n\nhttp://www.le.ac.uk/by/teach/biochemweb/tutorials/michment2print.html\n\nGood luck
393544
two cell divisions.... one for meiosis 1 and one for meiosis 2
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the daughter cell will not have the correct amount of chromosomes if S phase does not occur. \n\nthe daughter cell will not have the same amount of chromosomes as parent cell for mitosis, \n\nand daughter cell will not have half the number of chromosomes as parent cell for meiosis.
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OF COURSE!!!! This is the whole idea of mitosis, my dear!\nAt least in healthy non-cancerous cells.\nEukaryotic cells need to undergo replication of DNA (during the S-phase of the cell cycle) prior to divide into 2 IDENTICAL daughter cells, with identical set of chromosomes containing one copy of each sister chromatide. Mitotic defects are due to problems with the mitotic spindle and generally lead to aneuploidy and to mitotic catastrophe (or cell death). A mechanism of control of this process is called mitotic spindle checkpoint and ensures that the protein complex that keeps the sister chromatides together is only degraded when all the chromosomes are correctly aligned and their kinetochores are attached to the spindle pole bodies. Proteins involved in the regulation of the mitotic spindle checkpoints include kinases, such as BubR1 and AuroraB, proteases, such as separase and the APC complex, and ATPases (clamp loaders) which "load" the complexes onto the DNA.\nOf course, if the cells undergo mutations during DNA replication, the two daughter cells may not be identical, but these are rare events.
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If we were talking about human cells, there are 23 chromosomes in each cell. In mitosis, there are four main steps with another peparation time. The four are Prophase, Metaphase, Anaphase, and Telephase (PMAT). The peparation time before mitosis is called Interphase (not a step of mitosis) where chromosomes duplicate themselves (23 x 2 = 46 chromosomes total). During these steps of mitosis, the cell divides into two. So if a cell with 46 chromosomes divide into two daughter cells, then each daughter cell will have 23 chromosomes in the end. The result of mitosis: more cells with the same number of chromosomes in each cell.\n\nA cell goes through a cell cycle. Use this link to see the cell cycle: http://www.biology.arizona.edu/Cell_bio/tutorials/cell_cycle/cells2.html\n\nrelatively, mitosis is a short process.
101351
asymetric cytokinesis in oocytes.
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The cell cycle, or cell-division cycle (CDC), is the series of events in a eukaryotic cell between one cell division and the next. Thus, it is the process by which a single-cell fertilized egg develops into a mature organism and the process by which hair, skin, blood cells, and some internal organs are renewed. A specialized form of cell division is responsible for cellular differentiation during embryogenesis and morphogenesis, as well as for the maintenance of stem cells during adult life.\n\nThe cell cycle consists of four distinct phases: G1 phase, S phase, G2 phase (collectively known as interphase) and M phase. M phase is itself composed of two tightly coupled processes: mitosis, in which the cell's chromosomes are divided between the two daughter cells, and cytokinesis, in which the cell's cytoplasm physically divides. Cells that have temporarily or reversibly stopped dividing are said to have entered a state of quiescence called G0 phase, while cells that have permanently stopped dividing due to age or accumulated DNA damage are said to be senescent. Some cell types in mature organisms, such as parenchymal cells of the liver and kidney, enter the G0 phase semi-permanently and can only be induced to begin dividing again under very specific circumstances; other types, such as epithelial cells, continue to divide throughout an organism's life.\n\nThe molecular events that control the cell cycle are ordered and directional; that is, each process occurs in a sequential fashion and it is impossible to "reverse" the cycle. There are two key classes of regulatory molecules that determine a cell's progress through the cell cycle: cyclins and cyclin-dependent kinases. Leland H. Hartwell, R. Timothy Hunt, and Paul M. Nurse won the 2001 Nobel Prize in Physiology or Medicine for their discovery of these central molecules in the regulation of the cell cycle.\n\nPhases of the cell cycle\n\n Schematic of the cell cycle. I=Interphase, M=Mitosis. The duration of mitosis in relation to the other phases has\nbeen exaggerated in this diagramAlthough the various stages of interphase are not usually morphologically distinguishable, each phase of the cell cycle has a distinct set of specialized biochemical processes that prepare the cell for entry into the next stage. It should be remembered that, throughout interphase, the cell carries out its normal metabolic activities and is actively engaging in transcription and translation of its genome.\n\nIn G1 phase, the cell carries on its usual metabolic activities while preparing to duplicate its DNA. These preparations often include growing by increasing the amount of cytoplasm and the number of important organelles such as mitochondria. (This is particularly important in organisms and cell types that divide their cytoplasm unevenly, as in budding yeast.) In G1 a diploid cell (such as a human cell) has a complement of 2N chromosomes, where N is the gene copy number; in sexually reproducing organisms this amounts to one chromosome inherited from each parent. The actual quantity of DNA is described as 2c, where the "c" value is measured in picograms and 1c is equal to the quantity of DNA in a single haploid genome. The end of G1 is demarcated by a "point of no return" beyond which the cell is committed to dividing; in yeast this is called START and in multicellular eukaryotes it is termed the restriction point. \nIn S phase, the cell duplicates its DNA. \nIn G2 phase, the cell continues with growth and metabolism in preparation for undergoing mitosis. In this quantity of DNA within the cell has increased to 4c, but the cell is still considered diploid. \nIn M phase the cell segregates its chromosomes so that both daughter cells receive a total complement of 2N. The four stages of mitosis - prophase, metaphase, anaphase, and telophase - also progress in a sequential and directional fashion, like the cell cycle as a whole. Telophase, the final stage of mi
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If the total number of cells you finish with at the end of what I assume is mitosis is 36, then you began with 18 cells, which I suppose is 50%.  Is that at all what you are asking?
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I’m not sure if mitosis inhibiting ‘compound’ is the right approach, as it will prevent the good cells from dividing as well. On the other hand developing the viruses that attack malignant cell may be a more effective way.
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Firstly you should ask the proper ques. The ques. should be like this "What is the difference b/w meosis and mitosis".\n        The answer to your ques. is:-\n       MITOSIS                                       MEOSIS\n* Takes place in somatic                  * Takes place in reproductive\n   cells                                                   cells                                    \n* Produces two cells                         * Produces four haploid cells\n* No crossing over                             * Crossing Over takes place\n*The no. of chromosomes re-           * The no. of chromosomes \n  mains the same after mitosis             is reduced to one-half after\n                                                              meiosis
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http://www.iknow.net/CDROMs/cell_cdrom/index.shtml\n\nCheck this site out! It has both plant and animal cell division! Hope it helps ya!! =o)
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During prophase. But it actually doesn't happen in all organisms. Yeast for example has a nuclear duplication and division without ever breaking down the nuclear membrane.
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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.
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mitosis is the process of nuclear division in which the chromosomes replicate and become equally distributed into two daughter so that they hane the same number and type of chromosomes as present in the parent. it was first observed by Strasburger(1870) in plants and by Boveri & Fleming(1879) in animal cells... its also known as somatic division as it involves only the somatic body cells, also since its keeps the chromosome numeber the same its also known as equitorial division..\n\n\nmeiosis occurs in diploid cells and gives rise to four haploid nuclei, each havin n/2 number of chromosomes, here n is the number of chromosomes.. in this the nuclei divides twice but the chromosomes are replicated only once....\n\nits divided into 2 stages\n1. Meiosis 1\n2. Meiosis 2\n\neach have a number of sub stages..\n\nthere are 1000's of major differences, i'll sorting them, its upto u to remember the one... and as far as the pneumatic device is considered, it's common 2 all of us..\n\n\n1. Mitosis takes place in somatic cells, whereas Meiosis in reproductive cells.\n\n2. mitosis occurs in both haploid & Diplois, meiosis in diploid only.\n\n3. 2 & 4 daughter cells produced resp..\n\n4. CHROMOSOMES REPLICATE IN THE INTERPHASE BEFORE EVERY DIVISON IN MITOSIS BUT IN MEIOSIS THEY REPLICATE ONLY ONCE PRIOR TO MEIOSIS.
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http://en.wikipedia.org/wiki/Cell_%28biology%29\n\ndoes this help any?