Biology 1201A Lecture Notes - Lecture 1: Semiconservative Replication, Guanine, Thymine
12 Jan 2016
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Dna sequence at a specific location on the chromosome. To pull the chromatids to make 2 identical daughter cells. To make sure that the right dna is placed into both cells. A plane in the middle of the cell where the chromosomes are. All dna has been condensed into the chromosome structure lined up, the central region of a cell. Chemical reactions occurring, the tension created by both ends moves the chromosome to the middle of the cell. For the sister chromatids to separate, the cohesion needs to break down. They move slowly, because there are a large number of chromosomes in a small area, they are all tangled and move slowly so that chromosomes don"t get broken apart. New nuclear envelope forms around daughter chromosomes at each pole. Cytokinesis animal cells with myosin is present below the cell membrane. Contractile ring theory of a ring of parallel microfilament, mixed. Sliding of microfilaments constricts the cell, creating a furrow.
