Cell cycle - The Cell Cycle Genome An organism’s genetic...

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The Cell Cycle Genome - An organism’s genetic material Chromosomes - Linear strand of DNA with associated proteins found in the nucleus of eukaryotic cells. Centromere - specialized connection region between two sister chromatids; also site of microtubule attachment during mitotic spindle formation (kinetochore ) Sister chromatids - Two identical strands of DNA attached to each other following DNA replication Mitotic (M) Phase - Phase which includes Mitosis and cytokinesis Interphase - Period of cell growth and DNA replication Cleavage furrow - shallow groove in cell surface near metaphase plate where cytokinesis initiates; Consists of a contractile ring of microfilaments (actin) linked with myosin proteins
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CELL CYCLE Regulation G 1 checkpoint - Before cell reaches DNA synthesis stage, it must pass checkpoint in G1 phase. If a cell cannot pass this checkpoint the cell goes into G 0 phase, which is a cell’s nondividing state.
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