BIOS-251: Exam 2 Review Exam Questions with 100% Correct Answers

Cell division in which the nucleus divides into nuclei containing the same number of chromosomes Correct Answer Mitosis The resting phase of mitosis. Cell grows, performs its normal functions, and prepares for division; consists of G1, S, and G2 phases Correct Answer Interphase Cells that have left the cycle and cease dividing for a long time (or permanently) Correct Answer G Zero (G0) Phase The first gap, or growth phase, of the cell cycle, consisting of the portion of interphase before DNA synthesis begins. Correct Answer G1 Phase The synthesis phase of the cell cycle; the portion of interphase during which DNA is replicated. Correct Answer 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 Correct Answer 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 Correct Answer Prophase Second phase of mitosis, during which the chromosomes line up across the center of the cell Correct Answer Metaphase The third phase of mitosis, during which the chromosome pairs separate and move toward opposite poles Correct Answer Anaphase The final phase of cell division, between anaphase and interphase, in which the chromatids or chromosomes move to opposite ends of the cell and two nuclei are formed. Correct Answer Telophase Division of the cytoplasm during cell division Correct Answer Cytokinesis Cell division that produces reproductive cells (gametes) in sexually reproducing organisms Correct Answer Meiosis Compare and Contrast Mitosis and Meiosis Correct Answer Mitosis produces two diploid (2n) somatic cells that are genetically identical to each other and the original