Question | Answer |
Define Mitosis. | A type of cell division that results in two daughter cells each the same as the parent nucleus, typical of ordinary tissue growth. |
Define Meiosis. | A type of cell division that results in two daughter cells each with half the chromosome number of the parent cell. |
Define Interphase. | The resting phase between successive mitotic divisions of a cell, or between the first and second divisions of meiosis. |
Define Prophase. | The first stage of cell division, before Metaphase, during which the chromosomes become visible as paired Chromatids and the nucleus dissapears |
Define Metaphase. | The second stage of cell division during which the chromosomes become attached to the spindle fibers. |
Define Anaphase. | The stage of meiotic or mitotic cell division in which the chromosomes move away from one another to opposite poles of the spindle fibers. |
Define Telephase. | The final phase of cell division, between Anaphase and Interphase, in which the Chromatids or chromosomes move to opposite ends of the cell. |
Define Sister Chromatids. | Sister chromatids are 2 identical copies of a chromatin connected by a centromere. Compare sister chromatids to homologous chromosomes |
Define Centromere. | The point on a chromosome by which it is attached to a spindle fiber during cell division. |
Define Spindle Fiber. | In cell biology, the spindle fibers is the structure that separates the chromosomes into the daughter cells during cell division. |
Define Centriol | A minute cylindrical organelle near the nucleus in animal cells, occurring in pairs and involved in the development of spindle fibers |
Define Sexual Reproduction | The production of new living organisms by combining genetic information from two individuals of different types |
Define Sperm | The male reproductive cell; the male gamete; "a sperm is mostly a nucleus surrounded by little other cellular material" |
Define Eggs | |
Define Fertilization | |
Define zygote | |
Define Diploid | |
Define Haploid | |