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Cell Division
Nicole Mischel
Term | Definition |
---|---|
Mitosis | Asexual Eukaryotic cell divsion |
Daughter Cells | Either of the two identical cells that form when a cell mitoticly divides |
Meiosis | Type of cell division that is part of the process of gamet formation |
Chromatin | What DNA is called before it becomes a chromosome |
Chromatid | One of two identical chromosomal strands |
Sister Chromatids | Two identical copies of a single replicated chromosome that are connected by Centromere |
Chromosomes | Any of several threadlike bodies, consisting of organised chromatin, that carry the genes in a linear order |
Homologous Chromosomes | Two chromosomes of paternal and maternal origin that are identical in appearance and pair during meiosis |
Gene | The basic physical unit of heredity |
Karyotype | The number and visual appearance of the chromosomes arranged in decreasing |
Centrioles | Cylindrical cell organell that Spindle Fibers are anchor |
Centromere | Attaches Sister Chromatids at a single point on the chromosome |
Centrosome | The region in the cell cytoplasm containing the centrioles |
Aster | Star- shaped structure formed at the poles of a cell during mitosis |
Spindle Fibers | A protein structure that attaches to Sister Chromatids during Eukaryotic cell division |
Kinetochore Fiber | A protein structure on chromatids where the spindle fibers attach during cell division to pull sister chromatids apart |
Nucleolus | A conspicuous rounded body within the nucleus of a cell that exists before and after mitotic division |
Nuclear Envelope | Is the phospho lipid bilayer membrane which surrounds the genetic material and nucleolus in eukaryotic cells |
Interphase | The phase during which stages G1, S, and G2 occur |
Prophase | The first stage of mitosis or meiosis in Eukaryotic cell the nuclear envelope breaks down and strands of chromatin form into chromosomes |
Metaphase | The second stage in mitosis or meiosis in which the duplicated chromosomes line up along the equatorial plate of the spindle |
Anaphase | The stage in mitosis or meiosis following metaphase in which the daughter chromosomes move away from each other to opposite ends of the cell |
Telophase | The final stage of meiosis or mitosis the separated chromosomes reach the opposite poles of the dividing cell and the Nuclear Envelope of the daughter cells form around the two sets of chromosomes |
Cytokinesis | The division of the cell cytoplasm that usually follows mitotic or meiotic division of the nucleus |