cava bio 204 s1.d54 3.24 Mitosis
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| Before a cell can divide into two cells, the DNA makes a copy of itself during [-phase] . | Before a cell can divide into two cells, the DNA makes a copy of itself during interphase .
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| The two DNA copies are joined together by a structure called a [centr-] . | The two DNA copies are joined together by a structure called a centromere .
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| Once the copying of DNA is complete, the long DNA strands condense into a thick X shape. The condensed X shape is a [...] . Each side of the X is a [...] , and sometimes they are called sister [-s]. | Once the copying of DNA is complete, the long DNA strands condense into a thick X shape. The condensed X shape is a chromosome . Each side of the X is a chromatid , and sometimes they are called sister chromatids.
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| Mitosis is when a cell's [...] divides in two. | Mitosis is when a cell's nucleus divides in two.
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| There are [...] stages of mitosis. | There are four stages of mitosis. *Interphase is not part of mitosis.
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| A special organelle used in mitosis, a [centr-] , produces and organizes important proteins called spindle fibers. | A special organelle used in mitosis, a centrosome , produces and organizes important proteins called spindle fibers.
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| [...] fibers separate the sister chromatids from each other and pull them to opposite sides of the cell. | Spindle fibers separate the sister chromatids from each other and pull them to opposite sides of the cell.
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| In animal cells, a pair of small structures called [-s] is found in the centrosome. [-s] help organize the spindle fibers. | In animal cells, a pair of small structures called centrioles is found in the centrosome. Centrioles help organize the spindle fibers.
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| In [-phase], the cell's chromosomes are not clearly visible. They are in the nucleus, but they have not condensed down into the X-shapes. | In interphase, the cell's chromosomes are not clearly visible. They are in the nucleus, but they have not condensed down into the X-shapes.
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| [-phase] is the first step of mitosis. | Prophase is the first step of mitosis.
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| During [-phase], chromosomes move towards the center. | During prophase, chromosomes move towards the center.
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| During [-phase], the nuclear membrane dissolves. | During prophase, the nuclear membrane dissolves.
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| In [-phase], the chomosomes are lined up in the center. | In metaphase, the chomosomes are lined up in the center.
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| In [-phase], the chromatids are pulled apart. | In anaphase, the chromatids are pulled apart.
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| Once separated, the sister [...] are again called chromosomes. | Once separated, the sister chromatids are again called chromosomes.
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| In [...], the chromosomes have reached the two opposite ends of the spindle fibers. (telo- means '[...]') | In telophase, the chromosomes have reached the two opposite ends of the spindle fibers. (telo- means 'end')
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| In [...], two new nuclear membranes form. | In telophase, two new nuclear membranes form.
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| Mnemonic Device: [...] (Prophase, Metaphase, Anaphase, Telophase) | Mnemonic Device: Purple Mice Are Tasty (Prophase, Metaphase, Anaphase, Telophase)
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| [...] happens after mitosis... it's when the rest of the cell splits in two. | Cytokinesis happens after mitosis... it's when the rest of the cell splits in two.
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| Because plant cells are almost always rectangular, the 'pinching in' of cytokinesis looks more like a straight line. We call it the 'cell [...]' and it's a trivial detail that HS Bio texts just love | Because plant cells are almost always rectangular, the 'pinching in' of cytokinesis looks more like a straight line. We call it the 'cell plate' and it's a trivial detail that HS Bio texts just love
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| centriole vs centrosome vs centromere : The [centr-] is a little cylinder-shaped organelle in animal cells. Two of them are found in each centrosome. | centriole vs centrosome vs centromere : The centriole is a little cylinder-shaped organelle in animal cells. Two of them are found in each centrosome.
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| centriole vs centrosome vs centromere: The [centr-] is an organelle near the nucleus. Spindle fibers grow out of it. | centriole vs centrosome vs centromere: The centrosome is an organelle near the nucleus. Spindle fibers grow out of it.
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| centroile vs centrosome vs centromere: The [centr-] is a region of a chromosome where spindle fibers attach. It also helps hold sister chromatids together. | centroile vs centrosome vs centromere: The centromere is a region of a chromosome where spindle fibers attach. It also helps hold sister chromatids together.
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