BIO 201 Study Guide - Final Guide: Differential Centrifugation, Cell Cycle Checkpoint, Sister Chromatids

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Growth: cell lengthening and segregation of the two chromosomes and plasmids. Cytokinesis: split of the cell, two daughter cells. Each daughter cell can repeat the whole process. Proliferation is more complex in eukaryotic cells than bacteria because of eukaryotic cells need growth factors to grow and more complicated dna replication. Dna is not condensed and not visible. Frog oocytes will not progress through meiosis until they receive progesterone. Progesterone causes oocytes to mature and be released for fertilization. Mpf activity from one cell triggers entry into meiosis or mitosis in any other cell arrested in g2. Is made by the cell in response to progesterone. Cell cycle checkpoints: control mechanisms used by eukaryotic cells to ensure that cells proliferate only when certain internal and external conditions are met. Checkpoints are regulated to monitor nutrients, growth factors, cell size, dna damage, and tension. Tension i. e. cancer (mutations rb and p53, ras; viruses)

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