A typical eukaryotic cell cycle is illustrated by

Options

A. yeast
B. Bacteria
C. Human cells in culture
D. Both A and C

Explanation

To answer the question "A typical eukaryotic cell cycle is illustrated by," we will analyze the options provided and determine which one correctly represents a typical eukaryotic cell cycle.

### Step-by-Step Solution:

1. **Understanding Eukaryotic Cells**:
- Eukaryotic cells have a complex structure with a defined nucleus and organelles. They undergo a cell cycle that includes phases of growth and division.

2. **Identifying the Options**:
- The options provided include:
- A: Yeast
- B: Bacteria
- C: Human cell in culture

3. **Analyzing Each Option**:
- **Option A (Yeast)**:
- Yeast is a eukaryotic organism, but it is unicellular. Yeast reproduces through budding or fission, which may not represent the typical cell cycle as seen in multicellular organisms.
- **Option B (Bacteria)**:
- Bacteria are prokaryotic organisms and do not undergo a eukaryotic cell cycle. They reproduce through binary fission, which is not relevant to the eukaryotic cell cycle.
- **Option C (Human cell in culture)**:
- Human cells are eukaryotic and can be cultured in vitro. They undergo a typical cell cycle that includes interphase (growth phase) and mitosis (division phase). This option accurately represents the eukaryotic cell cycle.

4. **Conclusion**:
- The correct answer is **Option C: Human cell in culture**. This option illustrates a typical eukaryotic cell cycle.

### Final Answer:
A typical eukaryotic cell cycle is illustrated by **Option C: Human cell in culture**.

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