Which is not considered regular mitogen

Options

A. UV radiation
B. Nuclear radiation
C. 2=-aminopurine
D. Low temperature

Answer

**Step-by-Step Text Solution:**

1. **Understanding the Question**: The question asks which substance is not considered a regular mitogen. To answer this, we need to understand what a mitogen is.

2. **Definition of Mitogen**: A mitogen is a substance that stimulates or promotes mitosis, which is the process of cell division. Common examples of mitogens include certain chemicals and forms of radiation.

3. **Analyzing the Options**: The options provided are:
- A. UV Radiation
- B. Nuclear Radiation
- C. Aminopurine
- D. Low Temperature

4. **Evaluating Each Option**:
- **Option A: UV Radiation** - This is known to induce cell division and is considered a regular mitogen.
- **Option B: Nuclear Radiation** - Similar to UV radiation, nuclear radiation also promotes mitosis and is a regular mitogen.
- **Option C: Aminopurine** - This chemical compound is recognized as a regular mitogen as it promotes cell division.
- **Option D: Low Temperature** - Low temperature does not promote mitosis or cell division and is therefore not considered a regular mitogen.

5. **Conclusion**: After evaluating all the options, the correct answer is **Option D: Low Temperature**, as it does not act as a mitogen.

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