BIOL 2100 Lecture 30: 10/05/2016: 5.5,12.1,12.2 ~ Mitosis and the Cell Cycle
5 Oct 2016
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Document Summary
Unlike meiosis, mitosis results in genetically identical cells. Constantly shedding cells in the gut, skin. First mitotic event in life is when zygote divides. Gene expression determines what a cell specializes in. To determine the length of a cell cycle with an abundance of unsynchronized cells: Count the concentration using a grid and multiply. Then count the time it takes to divide. Pulse = labelling something in a way that we can detect it. Pulse with zero chase = taking a picture immediately after pulse. Pulse chase is good to see where something goes and how long it takes to get there. The s phase is about of the length of the whole cell cycle. Mitosis and s phase are not occurring at the same time. Only s phase cells become labeled with radioactive dna because they are synthesizing. Cytokinesis is the division of the cytoplasm.
