<prompt> For karyotyping, the dividing cells are arrested by the addition of colchicines in the following mitotic phaseProphaseMetaphaseAnaphaseTelophase  <response>: b. MetaphaseRef: Nelsons 20e p 605-606, Ghai 8e p 645Chromosomes are examined after arresting dividing cells in metaphase with mitotic spindle inhibitors e.g., N-diacetyl- N-methylcolchicine, followed by staining. 