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13 terms

3.5 Key Terms

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cell cycle
the regular SEQUENCE OF GROWTH & DIVISION that cells undergo
interphase
the FIRST STAGE of the cell cycle that takes place BEFORE CELL DIVISON occurs
replication
the process in which DNA IS COPIED in the nucleus of the cell
mitosis
the STAGE of the cell cycle DURING WHICH THE CELL'S NUCLEUS DIVIDES into two new nuclei and one copy of the DNA is distributed into each daughter cell
chromosome
a doubled rod of condensed chromatin
cytokinesis
the FINAL STAGE of the cell cycle, in which the cell's cytoplasm divides, distributing the organelles into each of the two new cells
prophase
threadlike chromatin form double rod chromosomes. spindle fibers form a bridge between the ends of the cell. nuclear envelope
metaphase
middle. Chromosomes line up in the middle of the cell and attach to spindle fiber at its centromere
anaphase
centromeres split apart. chromatids separate and move along spindle fibers to opposite ends of cell. cell begins to stretch.
anaphase
centromeres split apart. chromatids separate and move along spindle fibers to opposite ends of cells. cell stretches out
telophase
final state of mitosis. cell membrane pinches in around middle of cell. cell split in two. each daughter has identical set of chromosomes
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