To assess the impact of a newly identified drug when added to a culture of subconfluent HeLa cells, a researcher analyzes the fluorescence activated cell sorting (FACS) profile of untreated (- Drug) versus treated (+ Drug) cells.
Based on the FACS profile shown above, this drug inhibits
1
G1 phase of the cell cycle
2
S phase of the cell cycle
3
G2 / M phase of the cell cycle
4
G0 phase of cell cycle
5
Question Not Attempted