DNA is replicated during the “S” phase (synthesis).
If you are talking about frequency in terms of waves, it is in seconds^-1
During prophase, the parent cell chromosomes — which were duplicated during S phase — condense and become thousands of times more compact than they were during interphase. ... Cohesin forms rings that hold the sister chromatids together, whereas condensin forms rings that coil the chromosomes into highly compact forms.
