Which of the events listed below is not observed during mitosis?
(a) Crossing over
(b) Movement of centrioles to opposite poles
(c) Appearance of chromosomes with two chromatids joined together at the centromere.
(d) Chromatin condensation
The crossing takes place only during prophase I of meiosis. It does not occur in mitosis. The rest of the options represent stages in mitosis.
The answer is the option (a) Crossing over