anaphase A stage that occurs once in mitosis and twice in meiosis and that involves the separation of chromosomal material to give two sets of chromosomes which will eventually form part of new cell nuclei. The separation is controlled by the spindle. In anaphase of mitosis and anaphase II of meiosis, the centromere becomes functionally double and daughter chromosomes separate from the equator, moving towards the opposite poles of the spindle. The spindle then elongates and pushes the two groups of chromosomes further apart. In anaphase I of meiosis, the centromere does not divide.
anaphase The stage of mitosis or meiosis at which the centromere becomes functionally double, and daughter chromatids separate from the equator, moving towards the opposite poles of the spindle. The spindle then elongates and pushes the two groups of chromosomes further apart. In the second stage (anaphase II) of meiosis, centromeres do not divide and homologous chromosomes are separated.
anaphase One of several stages of cell division. In mitosis the chromatids of each chromosome move apart to opposite ends of the spindle. In the first anaphase of meiosis, the paired homologous chromosomes separate and move to opposite ends; in the second anaphase the chromatids move apart, as in mitosis.
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Prophase , prophase The first phase of mitosis and meiosis I and meiosis II. In mitosis and the first division of meiosis the chromosomes become visible within… Separation , sep·a·ra·tion / ˌsepəˈrāshən/ • n. 1. the action or state of moving or being moved apart: the damage that might arise from the separation of parents… Centromere , During mitosis in a typical plant or animal cell, each chromosome divides longitudinally into two sister chromosomes that eventually separate and tra… Spindle , spin·dle / ˈspindl/ • n. 1. a slender rounded rod with tapered ends used in hand spinning to twist and wind thread from a mass of wool or flax held o… separator , sep·a·ra·tor / ˈsepəˌrātər/ • n. a machine or device that separates something into its constituent or distinct elements: a magnetic separator. ∎ some… Telophase , telophase The fourth and final phase of mitosis and the 2 divisions of meiosis, during which the spindle disappears, nucleoli reappear, the nuclear m…
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