Which of the following is the correct order of events in mitosis? no, that's not the correct answer. a. sister chromatids line up at the metaphase plate. the kinetochore becomes attached to the mitotic spindle. the nucleus reforms and the cell divides. cohesin proteins break down and the sister chromatids separate. b. the kinetochore becomes attached to the mitotic spindle. cohesin proteins break down and the sister chromatids separate. sister chromatids line up at the metaphase plate. the nucleus reforms and the cell divides. c. the kinetochore becomes attached to the cohesin proteins. sister chromatids line up at the metaphase plate. the kinetochore breaks down and the sister chromatids separate. the nucleus reforms and the cell divides. d. the kinetochore becomes attached to the mitotic spindle. sister chromatids line up at the metaphase plate. cohesin proteins break down and the sister chromatids separate. the nucleus reforms and the cell divides.