Andrea and Kamar are inspecting microscope slides. Each slide shows a cell or cells. The students’ task is to identify which stage of the cell cycle each slide shows. Kamar reads, “Squamous cells from human cheek swab.”

“I recognize this one. It's in interphase,” says Andrea, peering into the microscope.

Based on Andrea's observation, what might have been happening in the cells at the time they were collected?