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Nuclear envelope is a derivative of:

1. Membrane of Golgi complex
2. Microtubules
3. Rough endoplasmic reticulum
4. Smooth endoplasmic reticulum

Correct answer: Rough endoplasmic reticulum

Solution

The nuclear envelope is derived from the rough endoplasmic reticulum because the outer nuclear membrane is continuous with the RER. During nuclear reassembly, ER membranes help rebuild the double membrane around the nucleus.

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