Assertion: division's structure | /r/CapableOf | call centriole
Facets:
Source sentences:
text: Once the material enclosing the nucleus dissolves, or, in the case of closed mitosis, after the DNA forms into Xs, structures called centrioles move to opposite ends of the cell and help make a spindle apparatus of microtubules, which is essentially like ropes running across the cell.
text: The meiotic spindle, a network of protein filaments, emerges from two structures called the centrioles, positioned at either end of the cell.