G1 phase - The first growth period of the cell cycle , S phase - occurs during interphase , G2 phase - The second growth period of the cell cycle , M phase - The cell divides its copied DNA and cytoplasm to make two new cells , prophase - The first phase of mitosis , Telophase - The fifth and final phase of mitosis , cytokinesis - The physical process of cell division, chromatin - Mixture of DNA and proteins that form the chromosomes  , chromatid - One of the two identical halves of a chromosome , spindle fibers - They help in the movement of chromosomes during both mitosis  , centriole - They organize the spindle fibers in the mitosis ,

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