what is the difference between cell cleavage and mitosis?
486567
Cell cleavage is multiplication of cells by fission. \n\nMitosis is the process in cell division by which the nucleus divides, typically consisting of four stages, prophase, metaphase, anaphase, and telophase, and normally resulting in two new nuclei, each of which contains a complete copy of the parental chromosomes. It is also called karyokinesis. :)
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.
244379
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.
841798
Any mitotic division REQUIRES cytokinesis.  It's the split of the cytoplasm and it starts in telophase, the last part of mitosis.
825948
Penguin says >>\n\nOogenesis is the process of females creating egg cells... When women are born, they have a lot of cells that of those egg cells, only a few will undergo meiosis and form egg cells. Meiosis, yes, does form four haploid cells from each one of those "pre-made egg cells". All those four haploid cells has 23 chromosomes. However, Meiosis only ensures that there are enough chromosomes for the offspring, and not necessarily the quality of the egg cell... \n\nWhat I mean is >> The larger egg cell containing more cytoplasm lives, while the other doesn't develope into an ovum. \n\nIn Meiosis I, the original cell divides into two, with 46 chromosomes. Meiosis does not seperate into two equal cells, as they do in mitosis. The larger cell then splits again [Meiosis II], and of the two haploid cells that result from Meiosis II, the larger one lives again. So, only one gamete is formed, though of the 4 haploids, 3 of the haploids degenerate. \n\n-- Cytokinesis isn't part of mitosis...Mitosis is part of the cell cycle, which has 3 steps :: interphase, mitosis, and cytokinesis. \n\nRemember that mitosis is the process of splitting a cell's nucleus. \n\nand remember that cytokinesis only splits two cells in half by pinching the cell membrane...\n\nSo... there's a difference. \n\nThank -you-\n\n<< Penguin waves good bye.
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)
739535
durring cytokinesis(division of the cyytoplam) a plant cell forms a cell plate and an animal cell forms celevage and piches off.\nalso plant cells do not contain centroiles that control the spindle
626233
Mitosis allows the chromosomes in a cell to be duplicated so that a new cell can be formed. \nMeiosis uses the same concept except that you end up with four haploid( half the # of chromosomes) gametes, or reproductive cells because of the second half of the meiosis cycle. When these cells(either egg-sperm, pollen-seed, ect) come together, they form a diploid cell(twice the # of chromosomes as the haploid cell), which then has the number of chromosomes needed for the organism to grow and the species continue on. This also results in different combinations of genes, unlike mitosis, so there is some individuality amoung members of that species.
698789
it is NOT in mitosis!!!!\nmitosis happens AFTER G2\ncytokinesis is on of the final stages of mitosis!\n\neverything else is right :)
870168
For a cell without a cell wall, cytokinesis begins with the pinching inward of the cell membrane caused by the action of a ring of special contractile proteins called actin and myosin. The pinching inward forms a deep grove, often called the cleavage furrow. Eventually, the opposite sides of the furrow meet and the cell splits into two new daughter cells. \n\nWhereas cytokinesis in cells lacking a cell wall occurs through a pinching inward, organisms with a cell wall undergo a process through which a so-called cell plate is built from the middle of the cell outward to the membrane. Vesicles from the Golgi bodies flatten and fuse in the center of the cell, forming the cell plate, which elongates toward the cell membrane as more vesicle are added. When the cell plate reaches the cell membrane, the parent cell is effectively separated into two new daughter cells, which then proceed to build a cell wall along the cell plate.
839769
Meiosis is specialized cell division (similar to mitosis). Mitosis results in 2 identical daughter cells from a single cell. Meiosis results in 4 daughter cells (which may not be identical) but each daughter cell only has one set of chromosomes, instead of the 2 sets of chromosomes present in the original cell. Each of these daughter cells is called a gamete. In sexual reproduction a male gamete and a female gamete (sperm and egg) fuse. Each contributes a single set of chromosomes so the resulting fused cell (zygote) has two sets like the cells that originally formed the gametes.
954953
Mitosis plays a role in the production of the population of cells that will give rise to the gametes, but not in the production of the gametes themselves. Sperm and ova are produced beginning with 'meiosis' or "reduction division". The immediate precursor cell to these gametes undergoes cell division with the separation of the diploid chromosome number to yield cells that are haploid, they only carry one of each chromosome and not the pair that is produced during mitosis in all other somatic cells.
175444
First of all, gametes are produced only through meiosis and the location only occurs in the gonads(testes or ovaries). \n\nMitosis occurs all over the body for growth and repair while mitosis is for reproduction. Mitosis undergoes only one cell division to produce two identical daughter cells. Meiosis has 2 cell divisions producing 4 haploid daughter cells with mixed genes by synapsis and crossing over.
386825
Mitosis is the splitting of one cell into two daughter cells.  The phases can be summed up into the acronym IPMAT.\n\nI interphase - has a G1 or growth one phase where cellular growth and DNA translation occur.  S or Synthesis phase where DNA is translated assembled and condensed.  G2 or growth two phase where cytoplasmic growth occurs.\n\nP prophase - where DNA starts condensing into chromosomes and centromeres polarise the cell forming spindal fibers.\n\nM metaphase - is when DNA is fully condenced and chromosomes are in equatorial allignment\n\nA anaphase - karyokenesis is complete, new nuclear membranes form and cytokenesis begins furrowing.\n\nT telephase - clevage furrowing completes to initiate a new G1 phase.
290621
Cytokinesis is part of mitosis where the cell membrane divides
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Meiosis reduces a cell from a diploid cell to a haploid cell. This is important because if it didn't reduce a diploid to a haploid cell, when fertilization would occur, chromosomes would double and that is bad. Chromosome number is species based.\n\nSexual reproduction requires meiosis.\n\nMeiosis in stages....\n\nMeiosis1\n\nInterphase-same as interphase usually is. \n\nMeiosis I\nProphase I-crossing over (homologous chromosomes switch nonsister chromatids). Also the mitotic spindle fibers start forming from the aster and the nuclear envelope disappears.\n\nMetaphase I-The chromosomes meet together at the metaphasic plate, longest phase outside of interphase.\n\nAnaphase I-the chromosomes stay together (aka no break at centromere) they just don't pair up anymore. The pairs split, one chromosome going one way, the other going the other way.\n\nTelophase I and Cytokinesis-Nuclear envelope may or may not reform once the cleavage furrow or cell plate occur. Understand cytoplasmic inheritance with this as well.\n\nMeiosis II\n\nProphase (No interphase) II-no duplicaiton of chromosomes. The mitotic spindles form again\n\nMetaphase II-Everything goes towards the mitotic plate\n\nAnaphase II-The kinetochore spindles, or mitotic spindles, attach to the kinetochores and separate the chromosomes, bringing one chromatid to one end of the cell, another to the other end of the cell.\n\nTelophase II and cytokinesis-four haploid daughter cells are created. Think about it, meiosis I produces two cells, second division creates 4 because each diploid cell produces two haploids.
258433
mitosis is asexual reproduction, cells divide and reproduce replicating their own DNA exactly\n\nmeiosis is sexual reproduction, new cells contain only half of their original DNA, and half from a different parent source