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Biology 311C Lecture 37 - Biology 311C Lecture 37 The...

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November 21, 2011 Biology 311C Lecture 37 The kinetochores have a part that interacts with the DNA and a part that interacts with the microtubules. During anaphase, the sister chromatins have been pulled apart. During interphase, the chromosomes are loosely arranged and cannot see them well. In prophase, we start to see dark dots and the chromosomes and starting to condense. In metaphase, the chromosomes are fully condensed and lining up along the metaphase plate. During telophase, you have the nuclear envelope dissolving and the two nuclei form in the cell. Cytokinesis in animals, you have cleavage furrows which is where the pinching of the daughter chromosomes; in plant cells, you have cell plate and the precursor to the cell wall. The frequency of cell division varies with the type of cell. Skin cells move rapidly through the cell cycle. The cell cycle (and cell division) appears to be driven by both internal (within the cell) and external controls.
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