BIOS-251: Exam 2 Review Top-Rated

Cell division in which the nucleus divides into nuclei containing the same number of chromosomes Mitosis The resting phase of mitosis. Cell grows, performs its normal functions, and prepares for division; consists of G1, S, and G2 phases Interphase Cells that have left the cycle and cease dividing for a long time (or permanently) G Zero (G0) Phase The first gap, or growth phase, of the cell cycle, consisting of the portion of interphase before DNA synthesis begins. G1 Phase The synthesis phase of the cell cycle; the portion of interphase during which DNA is replicated. S Phase The second gap, or growth phase, of the cell cycle, consisting of the portion of interphase after DNA synthesis occurs. Growth and preparation for mitosis G2 Phase First and 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 Prophase Second phase of mitosis, during which the chromosomes line up across the center of the cell