At which phase of mitosis, chromatids move to opposite poles

At which phase of meiosis, the sister chromatids move towards opposite poles?

In metaphase, the sister chromatids move towards the opposite poles of the spindle.

Assertion: During anaphase, centromere of each chromosome splits and chromatids separate. Reason: During anaphase, chromatids move to opposite poles.

In which phase of mitosis, centriole begins to move towards opposite pole?

Which of the following events takes place during anaphase stage of mitosis I. Spindle fibres attach to kinetochores of chromosomes II. Centromeres split and chromatids separate III. Chromatids move to opposite poles IV. Nucleolous, Golgi complex and E.R. reform