What is the step that happens in prophase II?
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Spindle fibers attach to chromosomes.
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two cell divisions.... one for meiosis 1 and one for meiosis 2
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2 cell divisions\nMeiosis I and Meiosis II
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S phase is the period of synthesis.  Mitosis is the nuclear division phase. If mitosis occur before DNA duplication during  anaphase or nuclear division results imbalance chromosome number. There is also some regulatory mechanism that copletion of DNA synthesis stimulates the mitosis to occur.
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Cells that are undergoing constant mitosis such as hematopoetic stem cells (cells in your bone marrow that give rise to blood cells) and keratinocytes (skin cells) generally replicate in an ongoing manner about once a day, or faster.  I should say that it is only the skin cells of the bottom two layers of epidermis that undergo replication (stratum basale, and stratum spinosum).  Most of the replication occurs in the bottom layer of the epidermis (basale).\n\nMost of the time will be spent in the pre-mitotic cell cycle stages, G1, S, and G2, giving the cell ample time to replicate its DNA, and prepare for the division.  These stages are collectively referred to as 'interphase'.  The G1 phase varies (it will be at least 4 hours), the G2 phase lasts aroud 4-5 hours, and the S phase is usually around 6-8 hours (this is when the DNA is replicating).  So the entire interphase will be anywhere from 14-24 hours.\n\nThe mitotic process (the M phase) only takes about an hour.  Prophase is usually the longest phase of mitosis, and is in itself often broken down into a few different substages.  Once the metaphase stage begins, things move along pretty swiftly.  \n\nHope that helps!
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1.synapsis occur only in meiosis. \n2.mitosis divide once, where meiosis divide twice. \n3.mitosis produce two daughter cells that are genetically identical to the parent cell, where meiosis produce four daughter cells that have only half of the chromosomes the mater cell had. \n4.meiosis have their homologous chromosomes separate!! but mitosis don't.
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(m)\n\nIn biology, meiosis is the process that transforms one diploid cell into four haploid cells in eukaryotes in order to redistribute the diploid's cell's genome.\n\nMeiosis forms the basis of sexual reproduction and can only occur in eukaryotes. In meiosis, the diploid cell's genome, which is composed of ordered structures of coiled DNA called chromosomes, is replicated once and separated twice, producing four haploid cells each containing half of the original cell's chromosomes. These resultant haploid cells will fertilize with other haploid cells of the opposite gender to form a diploid cell again. The cyclical process of separation by meiosis and genetic recombination through fertilization is called the life cycle. The result is that the offspring produced during germination after meiosis will have a slightly different blueprint which has instructions for the cells to work, contained in the DNA. This allows sexual reproduction to occur.\n\nMeiosis uses many biochemical processes that are similar to those used in mitosis in order to distribute chromosomes among the resulting cells; however the outcome is very different.\n\ngoto the following link for details about meiosis\nhttp://en.wikipedia.org/wiki/Meiosis
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This is simple. The interphase is a stage of the cell cycle.\nHere is the article in Wikipedia:\n"Interphase is a phase of the cell cycle, defined only by the absence of cell division. During interphase, the cell obtains nutrients, and duplicates its chromosomes. Most eukaryotic cells spend most of their time in interphase. For example, human skin cells, which divide about once a day, spend roughly 22 hours in interphase. Cells during interphase may or may not be growing. At any given time, even in an area of rapid cell division such as the tip of a plant root, 90 percent of cells are in interphase. Some cells, such as nerve cells, can stay in interphase for decades. The cell grows and replicates its DNA and centrioles. There are 3 parts of interphase: G1 (growth 1 in which the cell creates organelles and begins metabolism), S phase (DNA synthesis in which the chromosomes of the cell are copied) and G2 (growth 2 in which the cell grows in preparation for cell division). Sometimes the cells exit the cell cycles (usually from G1 phase) and enter the G0 phase. In the G0 phase, cells are alive and metabolically active, but do not divide. In this phase cells do not copy their DNA and do not prepare for cell division. Many cells in the human body, including those in heart muscle, eyes, and brain are in the G0 phase. If these cells are damaged they cannot be replaced. Interphase is the step before the mitotic phase, though it is frequently erroneously thought to be part of mitosis. The mitotic phase follows interphase, and begins with prophase.\n\nDuring interphase, the chromosomes are found arranged in the nucleus and appear as a network of long, thin threads, called the chromatin. At some point before prophase begins, the chromosomes begin to replicate themselves to form pairs of identical chromosomes. The deoxyribose nucleic acid (DNA) of the chromosomes is in use only during interphase, when the cell is in a stable and self reliant phase. In prophase the two chromatids are still connected by something called the centromere. The sister chromosomes contract tightly. Meanwhile, the nucleolus and the nuclear envelope break down and disappear, since their components have been sufficiently altered. Outside the nucleus are two centrosomes which sprout microtubules by polymerizing free-floating proteins. The centrosomes push themselves to opposite ends of the cell. The network of microtubules forms the beginning of the mitotic spindle. These spindle fibers become visible. The centrioles separate starting to radiate bundles of fibers, called asters. The spindle fibers run from one centriole to the other, at both poles of the cell. At the onset of prophase, chromatin condenses together into a highly ordered structure called a chromosome."\n---- End of citation ---\n\n\nRegarding the staining of the onion specimen - you do this in order to see the inner parts of the cell at the microscope. There are diferent types of colorations and you use one or other dependeg on what do you want to see (for example some coloration could be used for seing the chromosomes, while other coloration might be better for examining the cell wall).
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During s-phase of interphase, the genetic material is duplicated.    So #1 is FALSE.\n\nTelophase sees the production of the nulear membrane.  So in effect, new nuclei are formed, making #2 TRUE.\n\nMitosis creates two daughter cells that are diploid, because it is reproduction of somatic (body cells), no production of gametes (which would be haploid).  So, #3 is TRUE\n\nChromosome find their homolougous pair during prophase of Meiosis, NOT mitosis.  Pairing occurs during meiosis so the the gametes that are haploid can be formed. So #4 is TRUE\n\nEach species has a specific number of chromosomes- fruit flies for example have 8 chromosomes, while humans have 46.  So #5 is TRUE.
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It divides by mitosis then it begin to grow.According to which type of cell your referring to.That's what I think.
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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.
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telophase...it's basically the reverse of prophase.
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Fertilization.\nOr are you asking about what happens in Prophase 1 of Meiosis? Homologous chromosomes, one from each parent pair.
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Interphase: DNA replication\nProphase: Chromosomes become visible, nuclear membrane and nucleoli disappear, spindle forms between centrosomes\nMetaphase: Chromosomes align at cell equator and spindle fibers attach to kinetochores\nAnaphase: chromatids pulled apart to opposite poles of the cell once centromeres divide\nTelophase: chromatids (chromosomes) reach opposite poles and opposite of prophase occurs\nCytokinesis: the rest of the cell divides
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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.
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meiosis is the production of sex cells. \nmitosis is the production of somatic (body - think skin cells) cells.\n\nMitosis occurs in 5 stages - interphase, prophase, metaphase, anaphase and telophase. \n\nInterphase = is when the DNA condenses into chromatin and gets ready for replication. This is the stage when the DNA replicates itself.\n\nProphase = is when spindle fibers form, the chromosomes condenses, the nuclear membrane breaks down and the cell begins to get ready to divide. \n\nMetaphase =  is when the chromosomes line up in the middle of the cell. \n\nAnaphase =  is when the chromosomes move away from the middle and to the ends of the cell\n\nTelophase = two new nuclear membranes form.\n\n*Cytokenis = not really a stage, but it's when the cells organelles split. At the end of mitosis, you have two new somatic cells.\n\nMeiosis is trickier. there's a Meiosis I and Meisosis II. basically diploid cells are split in half to form haploid cells. \n\nMeiosis I is made up of Interphase, Prophase I, Metaphase I, Anaphase I, and Telophase I. Each of those stages are mostly the same as Mitosis, except that at the end of Meiosis I, you have 2 new daughter cells. \n\nMeiosis II is made up of Prophase II, Metaphase II, Anaphase II and Telophase II. these stages are the basically the same as mitosis too except that at the end of Meiosis II, you have 4 new daughter cells (that are haploid, meaning they have one set of chromosomes.)\n\nthis is just what i remember from biology. you should google it if you want more details.
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(for animal cells..)\n1. non-kinetochore microtubules lengthen. this elongates the cell even more than before.\n2. pairs of sister chromosomes attach at opposite ends of the cell.\n3. new nuclear envelopes form around the two sets of dna at the opposite ends of the cell.\n4. cytokinesis (division of cytoplasm) occurs and the plasma membrane re-forms around the two daughter cells.