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Glossary of Mitosis and Cell Division

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Cell Division =
Process by which a cell divides into two new daughter cells
Mitosis =
Part cell division during which the cell nucleus divides
Cytokinesis =
Division of the cytoplasm during cell division
Chromatid =
One of two identical “sister” parts of a duplicated chromosome
Centromere =
Area where the chromatids of a chromosome are attached
Interphase =
Period of the cell cycle between cell divisions
Prophase =
Longest phase of mitosis, during which the chromosomes become visible and the centrioles separate and take up positions on the opposite sides of the nucleus
Centriole =
One of two tiny structures Located near the nuclear envelope – move to opposite sides of cell during cell division
Spindle or Spindle Fibers =
Fanlike fibers that helps separate the chromosomes during mitosis
Metaphase =
Phase where chromosomes line up across the center of the cell
Anaphase =
Phase where chromosome pairs separate and move toward opposite poles
Telophase =
Phase where chromosomes begin to form new nuclei
Cell cycle =
Series of events that cells go through as they grow and divide
Cyclin =
One of a family of closely related proteins that regulate the cell cycle in eukaryotic cells
Cancer =
Disease in which some of the body's own cells divide uncontrollably

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