• Nuclear envelope develops around the chromosome clusters at each pole forming two daughter nuclei.
Arrange the following events in the correct sequence: 1. Chromosomes cluster at poles and lose individuality. 2. Centromeres split, chromatids separate. 3. Chromosomes align at equator. 4. Nuclear envelope reforms around chromosome clusters.
Correct answer: C — 3 → 2 → 1 → 4
Metaphase: chromosomes align at the equator of the spindle. Anaphase: centromeres split and sister chromatids separate to opposite poles. Telophase: chromosomes cluster at poles and lose individuality; nuclear envelope reforms around chromosome clusters.
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