SCIENCE
BOTANY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Late prophase
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Early metaphase
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Late metaphase
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early prophase
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Detailed explanation-1: -Final answer: ER and nucleolus begin to disappear during mitosis during late prophase.
Detailed explanation-2: -The nuclear envelope disintegrates early in mitosis, releasing a significant percentage of its contents into the cytoplasm. The nucleolus disassembles at the start of mitosis.
Detailed explanation-3: -Early prophase. The mitotic spindle starts to form, the chromosomes start to condense, and the nucleolus disappears. In early prophase, the cell starts to break down some structures and build others up, setting the stage for division of the chromosomes.
Detailed explanation-4: -Upon entry into mitosis, ER accumulates around the nucleus and was rapidly converted to thick, perinuclear cisternae upon chromosome condensation (red) and prophase onset. in prometaphase, the ER membrane reorganizes with the developing mitotic spindle and begins to accumulate at the spindle poles.