Of the four stages of mitosis,which one takes the most time to complete? tell me faster if you can pls.?
339071
Mitosis, also called karyokinesis, is division of the nucleus and its chromosomes.  It is followed by division of the cytoplasm known as cytokinesis.  Both mitosis and cytokinesis are parts of the life of a cell called the Cell Cycle.  Most of the life of a cell is spent in a non-dividing phase called Interphase.  Interphase includes G1 stage in which the newly divided cells grow in size, S stage in which the number of chromosomes is doubled and appear as chromatin, and G2 stage where the cell makes the enzymes & other cellular materials needed for mitosis.\n\nMitosis has 4 major stages --- Prophase, Metaphase, Anaphase, and Telophase. When a living organism needs new cells to repair damage, grow, or just maintain its condition, cells undergo mitosis.\n\nDuring Prophase, the DNA and proteins start to condense. The two centrioles move toward the opposite end of the cell in animals or microtubules are assembled in plants to form a spindle. The nuclear envelope and nucleolus also start to break up.\n\n\nProphase\n\nDuring Metaphase, the spindle apparatus attaches to sister chromatids of each chromosome. All the chromosomes are line up at the equator of the spindle. They are now in their most tightly condensed form.\n\n\nMetaphase\n\nDuring Anaphase, the spindle fibers attached to the two sister chromatids of each chromosome contract and separate chromosomes which move to opposite poles of the cell.\n\n\nAnaphase\nIn Telophase, as the 2 new cells pinch in half (animal cells) or a cell plate forms (plant cells), the chromosomes become less condensed again and reappear as chromatin. New membrane forms nuclear envelopes and the nucleolus is reformed.
984693
There are a few main checkpoints before cell division which you might be thinking of. \n\nBetween G1 and S, in the middle of the S phase, and between G2 and M, all checking to make sure that any damaged DNA is repaired before replication/division.\n\nThere are also checkpoints during mitosis, for example, between metaphase and anaphase to make sure all chromosomes are attached to spindles.
947432
It is definitely the chromosomes that divide in both mitosis and meiosis. However, the whole cells divides so # 1 sounds like the right answer. Did you ask in class? I am glad you are asking here , but you really should ask your teacher.
457393
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.
451972
Mitosis result in 2 cells that are typical to the parent cell. it also occurs in all type of cells\nMeiosis result in 4 cells each of them have half of the chromosomal material of the parent cell. it occurs in gametes
538932
if you're studying a section on vocab. or a step by step process make up a song! it's the easiest way to study b/c information's easier to memorize when set to music, and it doesnt take that long (for me anyway). for my biology class i made a song about mitosis. \n\n(sung to the tune of Waiting by Green Day)\n\nBefore, Mitosis occurs\nInterphase, has steps called G1\nG2, S phase and replication\n\nOf Chromosomes to make the daughter\nCells of, the parent cell\nProphase; chromatids join and become one.\n\nCentrioles, separate to make asters\nCentromere is where, chromosomes,\nAre held with spindle fibers.\n\nWell we’re so much closer to, another pair of cells.\nNext phase!\n\nDuring, Metaphase cells meet\nAt the, equatorial plate\nAnaphase, each pole gets a new set of genes\n\nIn Telophase, chromatin mark\nThe end of nuclear division\nThe nucleus and membrane form once again\n\nWell we’re getting closer to another pair of cells\nNext phase!\nA furrow forms between the cells\nSplits organelles\n\nWell we’re so much closer to another pair of cells\nNext phase!\nA furrow forms between the cells\nSplits organelles\n\nCytokinesis makes a\nCell plate in between plant cells\nTo make, cell walls for each daughter cell\n\nCell cycle is completed\nEach cell, now has it’s own set\nOf chromatin; made up of histones and DNA\n\nThe Cell…\nBetter thank somatic cells.\n\nlol...i still remember it.
501668
Mitosis is nuclear division plus cytokinesis, and produces two identical daughter cells during prophase, prometaphase, metaphase, anaphase, and telophase. Interphase is often included in discussions of mitosis, but interphase is technically not part of mitosis, but rather encompasses stages G1, S, and G2 of the cell cycle.  \nInterphase & mitosis Interphase \n  \nThe cell is engaged in metabolic activity and performing its prepare for mitosis (the next four phases that lead up to and include nuclear division). Chromosomes are not clearly discerned in the nucleus, although a dark spot called the nucleolus may be visible. The cell may contain a pair of centrioles (or microtubule organizing centers in plants) both of which are organizational sites for microtubules. \n \nProphase \n  \nChromatin in the nucleus begins to condense and becomes visible in the light microscope as chromosomes. The nucleolus disappears. Centrioles begin moving to opposite ends of the cell and fibers extend from the centromeres. Some fibers cross the cell to form the mitotic spindle. \n \nPrometaphase\n  \nThe nuclear membrane dissolves, marking the beginning of prometaphase. Proteins attach to the centromeres creating the kinetochores. Microtubules attach at the kinetochores and the chromosomes begin moving. \n \nMetaphase\n  \nSpindle fibers align the chromosomes along the middle of the cell nucleus. This line is referred to as the metaphase plate. This organization helps to ensure that in the next phase, when the chromosomes are separated, each new nucleus will receive one copy of each chromosome.\n \nAnaphase\n  \nThe paired chromosomes separate at the kinetochores and move to opposite sides of the cell. Motion results from a combination of kinetochore movement along the spindle microtubules and through the physical interaction of polar microtubules. \n \nTelophase \n  \nChromatids arrive at opposite poles of cell, and new membranes form around the daughter nuclei. The chromosomes disperse and are no longer visible under the light microscope. The spindle fibers disperse, and cytokinesis or the partitioning of the cell may also begin during this stage. \n \nCytokinesis\n \nIn animal cells, cytokinesis results when a fiber ring composed of a protein called actin around the center of the cell contracts pinching the cell into two daughter cells, each with one nucleus. In plant cells, the rigid wall requires that a cell plate be synthesized between the two daughter cells.
124582
Meiosis II is the second part of the meiotic process. Much of the process is similar to mitosis and meiosis I. \n\nProphase II \nIf needed, the nuclear membrane and nuclei break up while the spindle "network" appears and the chromosomes begin migrating to the metaphase II plate (at the cell's equator).\n\nMetaphase II \nThe chromosomes line up at the metaphase II plate at the cell's center. The kinetochores of the sister chromatids point toward opposite poles.\n\nAnaphase II \nThe sister chromatids separate and move toward the opposite cell poles.\n\nTelophase II \nDistinct nuclei form at the opposite poles and cytokinesis occurs.\n\nAt the end of meiosis II, there are four daughter cells each with one half the number of chromosomes of the original parent cell.
791273
Definitely b...\nDuring Interphase, there are 3 subphases - G1, S, and G2.  G1 is for growth of the cell, S is for synthesis of an extra set of chromosomes (amount of DNA in cells), and G2 is for preparation for the rest of cell division.  After interphase is prophase (nuclear membrane dissolves and DNA bundles up), then metaphase (DNA lines up on the center of the cell), anaphase (DNA separates towards poles), and telophase (Cell divides into two cells).  I hope this helps!\n\nAnswer: b. between the G1 and G2 phases of the cell cycle
454835
that mitosis or meiosis occured.
638045
the correct order:\n\n1) Chromosomes copy themselves (interphase).\n2) Chromosome copies fasten together as the nuclear... (prophase).\n3) Chromosomes line up in the center of the cell (metaphase).\n4) Chromosome copies separate (anaphase & telophase).\n5) Cell splits (cytokinesis).\n\nThis is correct. Disregard the former answers.
129517
A typical eukaryotic cell cycle consists of several phases.1/(G1) Presynthesis gap (10hours) 2/ S-phase (DNA synthesis) 9 hours 3/ Post-synthesis gap (G2) (4 hours) and 5/ Mitosis (1 hours) (prophase-metaphase-anaphase and telophase). The whole cell cycle during cell division takes approx 24 hours but can vary between cell type and organism.
880811
I don't have any picutres for you to look at, but I can give you an explanation.\nanimal cells are going to be more rounded, and plant cells are more rectangular.\nRemember: PMAT, these are the phases of mitosis\nProphase-the chromatin begins to condense into chromosomes and the nucleus begins to break down.\nMetaphase-The Chromosomes line up or Meet or "MET" at the cellular equator\nAnaphase- The chromosomes are pulled apart at the centromere\nTelophase- The chromatin decondenses and the neclues reforms\nAlso, the diff. between animal and plant cells....\nAnimal cells have a cleavage furrowl like a figure-8.\nPlant cells build a cell plate in between the separated chromosomes\nMitosis results in two daughter chromosomes.
589795
There are 3 stages of interphase. Gap 1 (G1) that is the first growth phase. Synthesis phase (S) phase which is the phase where the chromosomes replicate. Gap 2 (G2) is the second growth phase where the cell prepares for division.
837080
* Anaphase is the shortest phase of mitosis.\n    * The chromatids twins are all pulled apart at the centromere by the spindle fibers, separating as free chromosomes. Each newly separated chromosomes quickly moves to the spindle pole that its microtubule is joined.\n    * The poles of the cell get moved apart. Sister chromatds are pulled to opposite poles by shortening the microtubules joined to them.
880665
mitosis is not the 2nd part of meiosis. \ncrossing over does not happen in mitosis basically because there is no need to do so. \ncrossing over occurs in the 1st part of meiosis  when the 2 pairs of homologous chromosomes come together in the prophase part of meiosis--one pair of chromosomes from each parent. that is where the exhcange of genes occur in order to add variation between the 4 daughter cells.\nin mitosis, the homologous chromosomes do not come together. the DNA simply copies itself and will eventually lead to the split into 2 identical daughter cells.
41614
Mitosis and Meiosis are the two types of cell divison. \nMitosis:\nhttp://www.cellsalive.com/mitosis.htm\nMeiosis:\nhttp://www.cellsalive.com/meiosis.htm