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A subset of aggressive cancers has a relatively high growth rate, leading to the formation of large tumors.  An effective drug against fast-growing tumors would most likely NOT target which stage of the cell cycle?A.G0B.G2C.G2/M checkpointD.G1/S checkpoint

Question

A subset of aggressive cancers has a relatively high growth rate, leading to the formation of large tumors.  An effective drug against fast-growing tumors would most likely NOT target which stage of the cell cycle?A.G0B.G2C.G2/M checkpointD.G1/S checkpoint

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Solution

The most likely stage of the cell cycle that an effective drug against fast-growing tumors would NOT target is A. G0.

The G0 phase is a period in the cell cycle in which cells exist in a quiescent (inactive) state. Cells in G0 phase are not actively preparing to divide (which involves DNA replication and growth), which is the case in the other phases (G1, S, G2, and M).

Therefore, a drug designed to inhibit fast-growing tumors would likely target the stages where cells are actively dividing and growing (G1, S, G2, and M), rather than the G0 phase where cells are not.

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