Question

Which process does the M phase of cell cycle start with?

(a) Karyokinesis

(b) Cytokinesis

(c) Interphase

(d) Spindle formation

The question was asked in a national level competition.

Asked question is from Cell Cycle topic in chapter Cell Cycle and Cell Division of Biology – Class 11

Answer 1

Right option is (a) Karyokinesis

To explain I would say: The M phase of the cell cycle starts with karyokinesis or the separation of sister chromatids. It ends with cytokinesis or the division of the cytoplasm. The M phase occurs after interphase.