The duplication of chromosome takes place during mitosis in

Solution (By Examveda Team)

The duplication of chromosomes takes place during mitosis in Interphase.
During interphase, the cell grows and the nuclear DNA is duplicated. The interphase is followed by the mitotic phase.
The interphase was formerly called the resting phase. However, interphase does not describe a cell that is merely resting; rather, the cell is living and preparing for later cell division.