science
Grade-10
Easy

Question

In the process of mitosis, the movement of chromosomes need

  1. Centromere
  2. Plasmalemma
  3. Spindle fibres
  4. None of these

hintHint:

Thread like structures that are formed at the poles of the cell.

The correct answer is: Spindle fibres


    • During prophase, the nuclear membrane and cell organelles dissolve
    • The microtubule and spindle fibers also develop during prophase
    • After the alignment of the sister chromatids at the center of the cell during metaphase, the spindle fibers attach to the chromatids and start to contract
    • The contraction of the spindle fibers help in  the movement of the sister chromatids to the opposite poles of the cell
    • Centromere is part of chromosome, where the spindle fibers attach

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