During mitosis ER and nucleolus begin to disappear at

During mitosis ER and nucleolus begin to disappear at
  1. late prophase
  2. early metaphase
  3. late metaphase
  4. early prophase

Solution

In mitosis, prophase is the longest phase of karyokinesis. In early prophase, nuclear membranes, nucleolus start disintegrating. Cells cytoskeleton, Golgi complex, ER, etc disappear.

Asked in: NEET 2010 (Screening)

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