Answer :
The length of time it takes for the cells labeled during DNA synthesis to begin to enter mitosis is a good estimate of the length of the (c) G2 phase.
The length of time it takes for the cells labeled during DNA synthesis to begin to enter mitosis is a good estimate of the length of the G2 phase. This is the second phase of the cell cycle, and it follows G1 (growth) and precedes M (mitosis) and Sc (synthesis).
The G2 phase is where cells prepare for mitosis, the process in which the cell splits into two daughter cells. During this phase, the cell performs several important tasks, such as replicating DNA, synthesizing proteins, and organizing microtubules. The length of the G2 phase can vary depending on the type of cell and its growth environment.
To determine how long it takes for cells labeled during DNA synthesis to enter mitosis, scientists measure the length of the G2 phase by monitoring the cell cycle as it progresses from G1 to M and Sc. For example, researchers may measure the time it takes for cells to increase in size and for their nuclei to replicate. They can also observe the cell's microtubules as they prepare for mitosis.
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