Scientists isolate cells in various phases of the cell cycle.They find a group of cells that have 1½ times more DNA than do G₁ phase cells.The cells of this group are _____.
A)between the G₁ and S phases in the cell cycle
B)in the G₂ phase of the cell cycle
C)in the M phase of the cell cycle
D)in the S phase of the cell cycle

Question

Quizplus · Accepted Answer

Cells that have 1½ times more DNA than G₁ phase cells are in the S phase of the cell cycle, where DNA replication occurs, resulting in duplicated DNA. This rules out choices A, B, and C.

Scientists Isolate Cells in Various Phases of the Cell Cycle