Question

Which of the following is true about cells that are in the stage of the cell cycle known as the GO phase?

a. cells can never enter back into the G1 phase
b. cells in this phase are not actively preparing to undergo
c. cell duplicationcthe only human
d. cells that are ever in the GO phase are neuronsdcells in the GO phase are dormant (or entirely inactive)
e. all of the above is true about cells in the GO phase

Answer 1

Option (b) is correct; cells in the Go phase are not actively preparing to undergo cell duplication, and they can return to the G1 phase under the right conditions.

Step-by-step explanation:

The Go phase is a unique stage in the cell cycle where cells are not actively preparing to divide. This phase can be temporary or permanent, depending on the cell type. Some cells enter the Go phase until an external signal triggers the start of the G1 phase, indicating they are ready to prepare for cell division.

For example, cells may wait in Go due to environmental conditions like nutrient availability or the presence of growth factors. In contrast, cells that never or rarely divide, such as neurons and mature cardiac muscle cells, may remain in Go permanently. These cells, although not preparing for division, can still be active in other cellular functions.

In answering the question about the Go phase, option (b) cells in this phase are not actively preparing to undergo cell duplication is correct. Cells can indeed return to the G1 phase if given the appropriate signals, not all cells in the Go phase are neurons, and cells in the Go phase are not necessarily dormant; they may still be performing other functions.