Which phase of mitosis is characterized by the reappearance of the nuclear envelope?

Combrestatin is a drug that prevents the polymerization of microtubules. Which of the following processes would be most affected by combrestatin?

Which phase of mitosis involves the separation of chromatids?

A scientist has discovered a mutation that prevents cells from passing anaphase of mitosis. Of the following options, which is the most likely target of the mutation?

Crossing over occurs during which stage of meiosis?