Which of the following is true of kinetochores?

Which of the following is true of kinetochores?

  • A) They are the primary centrosome structures that maintain the attachment of the sister chromatids prior to mitosis.
  • B) They are the sites at which microtubules attach to chromosomes.
  • C) They are located at the center of the centrosome and organize tubulin into spindle fibers.
  • D) They cross at the cell’s equator and move against each other, causing the cell to elongate

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