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NEETBotanyCell Cycle and Cell Division

Match List-I with List-II regarding the structures involved in cell division. List-I List-II (A) Spindle fibres (I) Primary constriction (B) Kinetochore (II) Attachment site for spindle fibres (C) Centromere (III) Microtubular structures that move chromosomes (D) Centrosome (IV) Organelle that radiates aster rays Choose the correct answer from the options given below:

Options

  1. A(A)-(III), (B)-(I), (C)-(II), (D)-(IV)
  2. B(A)-(IV), (B)-(II), (C)-(I), (D)-(III)
  3. C(A)-(III), (B)-(II), (C)-(I), (D)-(IV)
  4. D(A)-(III), (B)-(II), (C)-(IV), (D)-(I)

Correct answer

C. (A)-(III), (B)-(II), (C)-(I), (D)-(IV)

Step-by-step solution

Spindle fibres are microtubular structures that attach to chromosomes and facilitate their movement towards opposite poles. Kinetochores are small disc-shaped structures present on the surface of the centromere, which serve as the attachment sites for spindle fibres. The centromere is the primary constriction of a chromosome that holds two sister chromatids together. The centrosome is an organelle containing two centrioles that radiates out microtubular aster rays during prophase to form the mitotic apparatus. Answ

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