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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
    The centromere links a pair of sister chromatids together during cell division This constricted region of chromosome connects the sister chromatids, creating a short arm (p) and a long arm (q) on the chromatids
  • 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 - 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 | 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 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
  • What Is a Centromere? Definition, Function Structure
    A centromere is the pinched region on a chromosome that controls how the chromosome gets pulled apart when a cell divides Every chromosome in your body has one, and it serves as the attachment point where the cell’s molecular machinery grabs on to separate copies of chromosomes into two new cells
  • Centromere - Definition, Function and Types | Biology Dictionary
    They remain joined, however, at the centromere – a special region that plays a vital role in cell division At the centromere, elements of the cell’s cytoskeleton assemble and 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?





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