6. Diagram and list events of the cell cycle (interphase and mitosis)

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The cell cycle consists of several stages that a cell goes through to grow and divide. It can be divided into two main phases: interphase and mitosis. Below is a diagrammatic representation and a list of events for each phase.

### Diagram of the Cell Cycle

```
          +------------------+
          |     Interphase   |
          |                  |
          |  G1  |   S   |  G2 |
          +------------------+
                   |
                   v
          +------------------+
          |      Mitosis     |
          |                  |
          |   Prophase       |
          |   Metaphase      |
          |   Anaphase       |
          |   Telophase      |
          +------------------+
                   |
                   v
          +------------------+
          |     Cytokinesis   |
          +------------------+
```

### Events of the Cell Cycle

#### Interphase
1. **G1 Phase (Gap 1)**:
   - The cell grows in size.
   - Synthesizes proteins and organelles.
   - Prepares for DNA replication.

2. **S Phase (Synthesis)**:
   - DNA replication occurs.
   - Each chromosome is duplicated, resulting in two sister chromatids.

3. **G2 Phase (Gap 2)**:
   - The cell continues to grow.
   - Produces proteins necessary for mitosis.
   - Checks for DNA damage and ensures all DNA is replicated correctly.

#### Mitosis
1. **Prophase**:
   - Chromatin condenses into visible chromosomes.
   - The nuclear envelope begins to break down.
   - The mitotic spindle begins to form.

2. **Metaphase**:
   - Chromosomes align at the metaphase plate (equatorial plane).
   - Spindle fibers attach to the centromeres of the chromosomes.

3. **Anaphase**:
   - Sister chromatids are pulled apart toward opposite poles of the cell.
   - The cell elongates as the spindle fibers shorten.

4. **Telophase**:
   - Chromatids reach the poles and begin to de-condense back into chromatin.
   - The nuclear envelope re-forms around each set of chromosomes.

#### Cytokinesis
- The cytoplasm divides, resulting in two separate daughter cells.
- In animal cells, this occurs through a cleavage furrow.
- In plant cells, a cell plate forms to separate the two new cells.

This overview provides a clear understanding of the cell cycle and its key events.
The cell cycle has two main phases: interphase and mitosis. **Interphase** includes: - **G1 Phase**: Cell grows and prepares for DNA replication. - **S Phase**: DNA is copied. - **G2 Phase**: Cell continues to grow and prepares for cell division. **Mitosis** includes: - **Prophase**: Chromosomes condense, nuclear envelope breaks down, and the spindle forms. - **Metaphase**: Chromosomes align at the center. - **Anaphase**: Sister chromatids separate. - **Telophase**: Chromosomes decondense, nuclear envelope reforms. After mitosis, **Cytokinesis** divides the cytoplasm, resulting in two new cells.

6. Diagram and list events of the cell cycle (interphase and mitosis)

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