BIOS-251: Exam 2 Review
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
Metaphase
The third phase of mitosis, during which the chromosome pairs separate and move toward opposite
poles
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.
Telophase
Division of the cytoplasm during cell division
Cytokinesis
Cell division that produces reproductive cells (gametes) in sexually reproducing organisms
Meiosis
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
Metaphase
The third phase of mitosis, during which the chromosome pairs separate and move toward opposite
poles
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.
Telophase
Division of the cytoplasm during cell division
Cytokinesis
Cell division that produces reproductive cells (gametes) in sexually reproducing organisms
Meiosis
