Machine-translated by Google. Questions are authored in English.
Top

Discussion

Microtubules grow from an organising centre which in animal cells is the

  • A.nucleolus
  • B.ribosome
  • C.peroxisome
  • D.centrosome

Answer: D

The centrosome contains a pair of centrioles surrounded by material rich in gamma-tubulin, which nucleates new microtubules from their minus ends. Plant cells organise their microtubules perfectly well without any such discrete centre, so the centrosome is not universal.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.