prophase mitosis

См. также в других словарях:

• Prophase — Prophase, from the ancient Greek πρό (before) and φάσις (stage), is a stage of mitosis in which the chromatin condenses (it becomes shorter and fatter) into a highly ordered structure called a chromosome in which the chromatin becomes visible.… …   Wikipedia

• prophase — [prō′fāz΄] n. [ PRO 1 + PHASE1] the first stage in mitosis, during which the chromatin is formed into chromosomes which split into separate paired chromatids …   English World dictionary

• mitosis — [mī tō′sis, mitō′sis] n. pl. mitoses [mī tō′sēz΄, mi tō′sēz΄] [ModL < Gr mitos, thread + OSIS] Biol. the indirect and more common method of nuclear division of cells, consisting typically of prophase, metaphase, anaphase, and telophase: the… …   English World dictionary

• Mitosis — Not to be confused with meiosis, miosis, or myositis. Mitosis divides the chromosomes …   Wikipedia

• prophase — The first stage of mitosis or meiosis, consisting of linear contraction and increase in thickness of the chromosomes (each composed of two chromatids) accompanied by migration of the two daughter centrioles and their asters toward the poles of… …   Medical dictionary

• Mitosis — Ordinary division of a body cell to form two daughter cells each with the same chromosome complement as the parent cell. * * * The usual process of somatic reproduction of cells consisting of a sequence of modifications of the nucleus (prophase,… …   Medical dictionary

• mitosis — mitotic /muy tot ik/, adj. mitotically, adv. /muy toh sis/, n. Cell Biol. the usual method of cell division, characterized typically by the resolving of the chromatin of the nucleus into a threadlike form, which condenses into chromosomes, each… …   Universalium

• mitosis — The usual process of nuclear division in the somatic cells of eukaryotes. Mitosis is classically divided into four stages. The chromosomes are actually replicated prior to mitosis during the S phase of the cell cycle. During the first stage,… …   Dictionary of molecular biology

• prophase — n. the first stage of mitosis and of each division of meiosis, in which the chromosomes become visible under the microscope. The first prophase of meiosis ocurs in five stages (see leptotene, zygotene, pachytene, diplotene, diakinesis) …   The new mediacal dictionary

• mitosis — noun (plural mitoses) Etymology: New Latin, from Greek mitos thread Date: 1887 1. a process that takes place in the nucleus of a dividing cell, involves typically a series of steps consisting of prophase, metaphase, anaphase, and telophase, and… …   New Collegiate Dictionary

• prophase — noun Etymology: International Scientific Vocabulary Date: 1884 1. the initial stage of mitosis and of the mitotic division of meiosis characterized by the condensation of chromosomes consisting of two chromatids, disappearance of the nucleolus… …   New Collegiate Dictionary