1 cycle is regulated by the activity of cyclins, proteins that interact with cyclin dependent kinases (Cdk) to form sign ys. Cyclin levels increase and decrease based on the stage of the cell cycle. he diagram of the cell cycle with the cyclins appropriate for each stage. Each label may be used once or more than o G2 S M G1 Answer Bank cyclin A cyclin D cyclin B cyclin E

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**The Cell Cycle and Cyclins: An Overview**

The cell cycle is regulated by the activity of cyclins, proteins that interact with cyclin-dependent kinases (Cdks) to form signaling pathways. Cyclin levels increase and decrease based on the stage of the cell cycle.

**Diagram Explanation:**

This diagram illustrates the cell cycle, which is divided into four main phases: G1, S, G2, and M. Each stage plays a crucial role in cell division and replication.

- **G1 Phase (Gap 1):** The cell grows and prepares for DNA synthesis. A label is needed here to indicate the cyclin that corresponds to this phase.
- **S Phase (Synthesis):** DNA replication occurs during this phase. It also requires a label indicating the appropriate cyclin.
- **G2 Phase (Gap 2):** The cell prepares for mitosis. The relevant cyclin needs to be labeled.
- **M Phase (Mitosis):** The cell undergoes mitosis and divides into two daughter cells. Again, a cyclin label is needed.

**Colored Arcs and Answer Bank:**

- The colored arcs surrounding the circle indicate the presence of different cyclins during each cell cycle phase. The colors are blue, purple, green, and red, which correspond to different cyclins. Each label should be used once or more based on the diagram.

**Answer Bank:**

- Cyclin A
- Cyclin B
- Cyclin D
- Cyclin E

**Instructions:**

Label the diagram with the cyclins appropriate for each stage of the cell cycle. Each cyclin from the answer bank may be used once or more than once to correctly label the diagram as per cyclin presence.
Transcribed Image Text:**The Cell Cycle and Cyclins: An Overview** The cell cycle is regulated by the activity of cyclins, proteins that interact with cyclin-dependent kinases (Cdks) to form signaling pathways. Cyclin levels increase and decrease based on the stage of the cell cycle. **Diagram Explanation:** This diagram illustrates the cell cycle, which is divided into four main phases: G1, S, G2, and M. Each stage plays a crucial role in cell division and replication. - **G1 Phase (Gap 1):** The cell grows and prepares for DNA synthesis. A label is needed here to indicate the cyclin that corresponds to this phase. - **S Phase (Synthesis):** DNA replication occurs during this phase. It also requires a label indicating the appropriate cyclin. - **G2 Phase (Gap 2):** The cell prepares for mitosis. The relevant cyclin needs to be labeled. - **M Phase (Mitosis):** The cell undergoes mitosis and divides into two daughter cells. Again, a cyclin label is needed. **Colored Arcs and Answer Bank:** - The colored arcs surrounding the circle indicate the presence of different cyclins during each cell cycle phase. The colors are blue, purple, green, and red, which correspond to different cyclins. Each label should be used once or more based on the diagram. **Answer Bank:** - Cyclin A - Cyclin B - Cyclin D - Cyclin E **Instructions:** Label the diagram with the cyclins appropriate for each stage of the cell cycle. Each cyclin from the answer bank may be used once or more than once to correctly label the diagram as per cyclin presence.
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