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STD 11 - 10. Cell cycle and cell division — BIOLOGY STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 10. Cell cycle and cell division1 Mark
MCQ
During mitosis, $ER$ and nucleolus begin to disappear at
  • A
    late prophase
  • B
    early metaphase
  • C
    late metaphase
  • ✓
    early prophase.
✓

Answer

Correct option: D.
early prophase.
d
(d) : During early prophase of mitosis, nucleus and cell become spheroid. Viscocity and refractivity of cytoplasm increases. $DNA$ molecules condense to form shortened chromosome. Endoplasmic reticulum and nucleolus starts disappearing.

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