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Cell Division

A Cell Division stack created with the 24 vocabulary words from AHS Biology

TermDefinition
Mitosis A type of cell division that results in two daughter cells that each have the same amount and kind of chromosomes as the parent cell.
Daughter Cell Either of the two identical cells that form when a cell divides.
Meiosis A type of cell division that results in four daughter cells each with half the number of chromosomes of the parent cell.
Chromatin the material of which the chromosomes of organisms other than bacteria are composed. It consists of protein, RNA, and DNA.
Sister Chromatids Two identical copies of one chromosome.
Chromosomes a threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes.
Homologous Chromosomes a pair of chromosomes containing a maternal and paternal chromatid joined to together at the centromere.
Gene a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring.
Karyotype the number and visual appearance of the chromosomes in the cell nuclei of an organism or species.
Centrioles a small cylindrical organelle near the nucleus in animal cells, occurring in pairs and involved in the development of spindle fibers in cell division.
Centromere the region of a chromosome to which the microtubules of the spindle attach, via the kinetochore, during cell division.
Centrosome an organelle near the nucleus of a cell that contains the centrioles (in animal cells) and from which the spindle fibers develop in cell division.
Aster a star-shaped structure formed during division of the nucleus of an animal cell.
Spindle fibers microtubules that are used to pull the chromosomes apart to each side of the cell, allowing the two daughter cells to be completely identical.
Kinetochore Fiber a protein structure on chromatids where the spindle fibers attach during cell division to pull sister chromatids apart.
Nucleolus a small dense spherical structure in the nucleus of a cell during interphase.
Interphase the resting phase between successive mitotic divisions of a cell, or between the first and second divisions of meiosis.
Prophase the first stage of cell division, before metaphase, during which the chromosomes become visible as paired chromatids and the nuclear envelope disappears.
Metaphase the second stage of cell division, between prophase and anaphase, during which the chromosomes become attached to the spindle fibers.
Anaphase the stage of meiotic or mitotic cell division in which the chromosomes move away from one another to opposite poles of the spindle.
Telophase 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.
Cytokinesis the cytoplasmic division of a cell at the end of mitosis or meiosis, bringing about the separation into two daughter cells.
Nuclear Envelope the double membrane structure that surrounds the nucleus in eukaryotic cells.
Created by: 1321790431237090