Question

Which of the following does not occur during mitosis

Answer 1

S-phase does not occur during mitosis; it is the phase where DNA duplication happens. Incorrect separation of chromatids leads to nondisjunction, and the correct order of mitosis includes attachment of kinetochores to spindles, chromatid alignment, separation, and then cell division.

Step-by-step explanation:

The event that does not occur during mitosis is d. S-phase, which is the phase where DNA duplication happens. Mitosis comprises of five stages: prophase, prometaphase, metaphase, anaphase, and telophase. During mitosis, if sister chromatids do not separate properly, a condition known as nondisjunction occurs, which can lead to errors in chromosome number in the resulting cells. A correct order of events in mitosis includes the kinetochores becoming attached to mitotic spindles, sister chromatids lining up at the metaphase plate, and then separating before the cell divides and the nucleus re-forms.

Answer 2

Well here's an image of the things that do occur (different phases). You can see which ones are are right in the answer choices and pick out the wrong one. I hope this helps...