Scelta multipla
During the cell cycle associated with mitosis, in which phase is DNA replicated?
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9. Mitosis and Meiosis
Mitosis
Scelta multipla
During prophase of mitosis, what happens to the cell's DNA?
A
It separates into daughter chromosomes and moves to opposite poles.
B
It aligns along the metaphase plate at the center of the cell.
C
It is replicated to produce identical sister chromatids.
D
It condenses into visible chromosomes as chromatin coils and compacts.
Guida verificata passo dopo passo1
Recall the stages of mitosis and the key events that occur in each phase, focusing on prophase.
Understand that during prophase, the chromatin (which is the uncondensed form of DNA) undergoes structural changes.
Recognize that the DNA condenses by coiling and compacting into visible chromosomes, making them distinguishable under a microscope.
Note that sister chromatids are already formed before mitosis begins, during the S phase of interphase, so replication does not occur in prophase.
Differentiate prophase from other mitotic phases: alignment at the metaphase plate happens in metaphase, and separation into daughter chromosomes occurs during anaphase.
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