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centromere    
着丝点

着丝点

centromere
n 1: a specialized condensed region of each chromosome that
appears during mitosis where the chromatids are held
together to form an X shape; "the centromere is difficult
to sequence" [synonym: {centromere}, {kinetochore}]


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  • Centromere - Wikipedia
    In this diagram of a duplicated chromosome, (2) identifies the centromere—the region that joins the two sister chromatids, or each half of the chromosome In prophase of mitosis, specialized regions on centromeres called kinetochores attach chromosomes to spindle fibers
  • Centromere | chromosome, DNA, replication | Britannica
    centromere, structure in a chromosome that holds together the two chromatids (the daughter strands of a replicated chromosome) The centromere is the point of attachment of the kinetochore, a structure to which the microtubules of the mitotic spindle become anchored
  • Centromere - National Human Genome Research Institute
    The centromere appears as a constricted region of a chromosome and plays a key role in helping the cell divide up its DNA during division (mitosis and meiosis) Specifically, it is the region where the cell’s spindle fibers attach
  • Centromere- Definition, Structure, Position, Types, Functions
    When a cell divides, the centromere, which resembles a constrictive area of a chromosome, is fundamental in assisting in the division of the DNA within the cell (mitosis and meiosis) during the metaphase stage
  • Centromere - Definition, Function and Types | Biology Dictionary
    At the centromere, elements of the cell’s cytoskeleton assemble and attach First, a complex of proteins called the kinetochore assembles around the centromere region of DNA; then, mitotic spindle fibers attach to the kinetochore
  • CENTROMERE Definition Meaning - Merriam-Webster
    The meaning of CENTROMERE is the point or region on a chromosome to which the spindle attaches during mitosis and meiosis
  • Centromere Structure and Function - PMC
    The centromere is the genetic locus that specifies the site of kinetochore assembly, where the chromosome will attach to the kinetochore microtubule The pericentromere is the physical region responsible for the geometry of bi-oriented sister kinetochores in metaphase
  • Centromere | Research
    The centromere appears as a constricted region of a chromosome and plays a key role in helping the cell divide up its DNA during division (mitosis and meiosis) Specifically, it is the region where the cell’s spindle fibers attach
  • Centromere - an overview | ScienceDirect Topics
    The centromere is defined as a specialized region of DNA and proteins that ensures chromosome inheritance and genome stability by promoting the formation of the kinetochore complex, coordinating chromosome movement during mitosis and meiosis, and synchronizing chromosome structure-related processes How useful is this definition?
  • Centromeres: Current Biology - Cell Press
    Centromeres were first described by Walther Flemming in 1882 as the primary constrictions on chromosomes to which fibers emanating from the spindle made physical connections By the early 1900s, centromeres had acquired a genetic definition: the sites on a chromosome responsible for its inheritance How are centromeres specified on a chromosome?





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