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mitosis    
n. 有丝分裂,间接核分裂

有丝分裂,间接核分裂

mitosis
n 1: cell division in which the nucleus divides into nuclei
containing the same number of chromosomes

Karyokinesis \Kar"y*o*ki*ne`sis\
(k[a^]r`[i^]*[-o]*k[-i]*n[=e]"s[i^]s), n. [NL., fr. Gr.
ka`ryon a nut, kernel kinei^n to move.]
1. (Biol.) The indirect division of cells in which, prior to
division of the cell protoplasm, complicated changes take
place in the nucleus, attended with movement of the
nuclear fibrils; -- opposed to {karyostenosis}. The
nucleus becomes enlarged and convoluted, and finally the
threads are separated into two groups which ultimately
become disconnected and constitute the daughter nuclei.
Called also {mitosis}. See {Cell development}, under
{Cell}.
[1913 Webster]

2. The changes that occur in the nucleus of a cell,
especially movements of the chromosomes, in the process of
cell division.
[PJC]


Mitosis \Mi*to"sis\, n. [NL., fr. Gr. ? a thread.] (Biol.)
See {Karyokinesis}.
[1913 Webster]


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  • Mitosis | Definition, Stages, Diagram, Facts | Britannica
    Mitosis, a process of cell duplication, or reproduction, during which one cell gives rise to two genetically identical daughter cells Strictly applied, the term is used to describe the duplication and distribution of chromosomes, the structures that carry the genetic information
  • Mitosis - Wikipedia
    Mitosis in the animal cell cycle (phases ordered counter-clockwise) Mitosis ( maɪˈtoʊsɪs ) is a part of the cell cycle in eukaryotic cells in which replicated chromosomes are separated into two new nuclei Cell division by mitosis is an equational division which gives rise to genetically identical cells in which the total number of chromosomes is maintained [1] Mitosis is preceded by
  • Mitosis: Phases, Applications Diagrams Explained
    Explore the stages of mitosis with detailed diagrams Understand each phase and discover real-world applications of this essential cell division process
  • Mitosis Phases, Importance, and Location
    Mitosis is the part of the cell cycle where a cell’s nucleus divides After cytokinesis, there are two identical daughter cells Mitosis is a process of cell division that results in two genetically identical daughter cells from a single parent cell It’s critical for growth, repair, and asexual reproduction Mitosis is classically divided into either four or five stages: prophase
  • Mitosis: Definition, Stages, Purpose, with Diagram
    Mitosis is a method of cell division where the mother cell divides to produce two genetically identical daughter cells Itis similar in both plants and animals In lower animals such as amoeba, mitosis is a means of asexual reproduction without the involvement of sex cells or gametes The term ‘mitosis’ was coined by Walther Flemming in 1882 and derived from the Greek word ‘mitos
  • The Cell Cycle Mitosis – Introductory Biology
    The second portion of the mitotic phase, called cytokinesis, is the physical separation of the cytoplasmic components into two daughter cells Mitosis Mitosis is divided into a series of phases—prophase, prometaphase, metaphase, anaphase, and telophase—that result in the division of the cell nucleus (Figure 2)
  • Mitosis - National Human Genome Research Institute
    Mitosis is a cellular process that replicates chromosomes and produces two identical nuclei in preparation for cell division
  • The Stages of Mitosis and Cell Division - ThoughtCo
    Mitosis is the phase of the cell cycle in which chromosomes in the nucleus are evenly divided between two cells When the cell division process is complete, two daughter cells with identical genetic material are produced Understanding the steps of mitosis is crucial in comprehending how organisms grow, develop, and repair tissues It plays a fundamental role in various biological processes
  • Phases of mitosis | Mitosis | Biology (article) | Khan Academy
    Phases of mitosis Mitosis consists of four basic phases: prophase, metaphase, anaphase, and telophase Some textbooks list five, breaking prophase into an early phase (called prophase) and a late phase (called prometaphase)
  • What Is Mitosis? Stages and Purpose - sciencenewstoday. org
    Mitosis begins in earnest with prophase—the first of its five dramatic stages During prophase, the cell transforms The chromatin, a diffuse and tangled form of DNA, begins to condense into visible chromosomes Each chromosome is already duplicated from interphase and now consists of two sister chromatids This condensation is crucial





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