Scelta multipla
Do sex cells (gametes) undergo mitosis as part of their formation in humans?
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16. Cell Division
Mitosis
Scelta multipla
In mitosis, how many rounds of cell division occur per cell cycle?
A
Two
B
One
C
Zero; mitosis involves DNA replication but no division
D
Four
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Recall the definition of the cell cycle, which includes phases such as interphase (G1, S, G2) and the mitotic phase (M phase).
Understand that mitosis is the process during the M phase where a single cell divides its duplicated chromosomes into two identical sets.
Recognize that one complete cell cycle results in one round of mitosis, producing two daughter cells from one parent cell.
Note that DNA replication occurs during the S phase of interphase, not during mitosis itself, so mitosis involves division but not DNA replication.
Conclude that per cell cycle, there is exactly one round of mitosis (one cell division), which is why the correct answer is 'One'.
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