Question

What replicates during mitosis

Answer 1

A. Organelles
B. cytoplasm
C. cells
D. proteins

Answer 2

During mitosis, the chromosomes replicate to ensure that each daughter cell receives an identical set of genetic information. Specifically, prior to mitosis, during the S phase of the cell cycle, the DNA in the cell is duplicated, resulting in two identical copies of each chromosome, known as sister chromatids. These sister chromatids are then separated during mitosis to ensure that each newly formed daughter cell has the same number of chromosomes as the original parent cell. So, while mitosis itself focuses on the separation of these already replicated chromosomes, the actual replication occurs earlier in the cell cycle.

Answer 3

In the context of what replicates during mitosis from the options provided:

A. **Organelles** - Some organelles do replicate in preparation for cell division, but they are not the primary focus of mitosis.

B. **Cytoplasm** - The cytoplasm itself does not replicate during mitosis, but it is divided between the two daughter cells.

C. **Cells** - Mitosis is the process by which a single cell divides to form two daughter cells. However, "cells" as a whole do not replicate; rather, the process results in new cells.

D. **Proteins** - Proteins can be synthesized in preparation for mitosis, but they do not replicate in the same way as DNA does.

### Correct Answer:
The most relevant concept is **C. cells**, as mitosis is the process of cell division, but it is essential to clarify that it is the chromosomes (specifically, the sister chromatids) that are replicated before mitosis. Thus, none of the options strictly describe what replicates during mitosis itself, but if you must choose based on the context, "C. cells" would be the closest answer, highlighting the end result of the mitotic process.