Question

The model shows steps involved in the eukaryotic cell cycle.

A cell containing four strands line up along the middle of the cell. The cell is pinched in the center and each side of the cell contains two strands. Two cells are produced, each with two strands.

Which best describes what is occurring in the model?



Responses

A. The cell is undergoing the S phase, where the cell rapidly grows and divides.

The cell is undergoing mitosis, not the S phase.
A. The cell is undergoing the S phase, where the cell rapidly grows and divides. The cell is undergoing mitosis, not the S phase.

B. The cell is undergoing the S phase, where the genetic material of the cell is copied.

The cell is undergoing mitosis, not the S phase.
B. The cell is undergoing the S phase, where the genetic material of the cell is copied. The cell is undergoing mitosis, not the S phase.

C. The cell is undergoing mitosis, where one cell splits into two genetically diverse daughter cells.

The cell is undergoing mitosis, where one cell splits into two genetically identical, not diverse, daughter cells.
C. The cell is undergoing mitosis, where one cell splits into two genetically diverse daughter cells. The cell is undergoing mitosis, where one cell splits into two genetically identical, not diverse, daughter cells.

D. The cell is undergoing mitosis, where one cell splits into two genetically identical daughter cells.

The cell process shown in the model is part of mitosis, where one parent cell divides to create two daughter cells, each containing genetically identical DNA.

Answer 1

D.

This shows mitosis (metaphase → anaphase/cytokinesis): replicated chromosomes (sister chromatids) line up at the cell center, are separated, and the cell divides to produce two genetically identical daughter cells.