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

Question

Quizplus · Accepted Answer

Cells in the S phase are actively replicating their DNA, so they have more DNA than G₁ phase cells but not yet double, which is why they have 1½ times more DNA.

Scientists Isolate Cells in Various Phases of the Cell Cycle