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Multiple Choice
During mitosis, what organelle reforms around the chromatids at opposite ends of the cell?
A
Golgi apparatus
B
Mitochondrion
C
Endoplasmic reticulum
D
Nuclear envelope
Verified step by step guidance
1
Understand the process of mitosis: Mitosis is the division of a cell's nucleus into two identical nuclei, ensuring that each daughter cell receives a complete set of chromosomes.
Focus on the final stage of mitosis, called telophase: During telophase, the chromatids (now individual chromosomes) are located at opposite ends of the cell.
Recall the role of the nuclear envelope: The nuclear envelope is a double membrane structure that surrounds the nucleus, protecting the genetic material and regulating the exchange of substances between the nucleus and cytoplasm.
Identify what happens during telophase: The nuclear envelope reforms around the chromatids at each pole of the cell, creating two separate nuclei. This marks the re-establishment of the nucleus in each daughter cell.
Eliminate incorrect options: The Golgi apparatus, mitochondrion, and endoplasmic reticulum are not involved in reforming the nuclear envelope during mitosis. The correct answer is the nuclear envelope.