Multiple Choice
During mitosis, in which stage does the nuclear envelope break down so the nucleus is no longer visible as an intact structure?
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16. Cell Division
Mitosis
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In mitosis, what best describes metaphase?
A
The nuclear envelope re-forms around each set of chromosomes and chromosomes begin to decondense.
B
Chromosomes align at the cell’s equatorial plane (metaphase plate) with spindle microtubules attached to kinetochores.
C
DNA is replicated to produce identical sister chromatids.
D
Sister chromatids separate and move toward opposite poles of the cell.
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