Question

Lily is developing a model of the eukaryotic cell cycle. The model includes mitosis, in which the chromosomes of a cell separate into single-stranded chromatids. Where should Lily show the duplication of the chromatids to prepare for another round of mitosis?

A. Cytokinesis, which occurs immediately after mitosis
B. Either of the two growth phases of the cell cycle
C. The S phase of the cell cycle
D. Telophase, which is the last phase of mitosis

Answer 1

Chromatid duplication occurs during the S phase (Synthesis phase) of the cell cycle, preparing the chromosomes for the subsequent round of mitosis.

Step-by-step explanation:

Lily should show the duplication of the chromatids during S phase of the cell cycle.

The S phase, also known as the Synthesis phase, is the period where DNA replication occurs, resulting in the duplication of chromosomes.

This is crucial for preparing the cell for another round of mitosis.

Each chromosome is duplicated to form two sister chromatids, which are later separated during the mitotic phase, ensuring that each daughter cell receives the correct number of chromosomes.