Physical carcinogen, e.g, UV-ray, X-ray and`gamma` - rays causes

Options

A. DNA damage
B. RNA dagamė
C. Both 1 and 2
D. Protein damage

Answer

**Step-by-Step Solution:**

1. **Identify the Carcinogens**: The question mentions physical carcinogens, specifically UV rays, X-rays, and gamma rays. These are types of radiation that can lead to cancer.

2. **Understand the Mechanism**: Carcinogens are agents that can cause cancer by inducing mutations in the genetic material of cells.

3. **Focus on DNA Damage**: Among the options provided, we need to determine what these physical carcinogens primarily damage. It is established that UV rays, X-rays, and gamma rays primarily cause damage to DNA.

4. **Mutations and Cancer**: The damage to DNA can lead to mutations. Mutations are changes in the DNA sequence that can disrupt normal cell function and lead to uncontrolled cell growth, which is characteristic of cancer.

5. **Eliminate Other Options**: The question also considers whether these rays damage RNA or proteins. However, the primary concern with these physical carcinogens is their effect on DNA, not RNA or proteins.

6. **Conclusion**: Therefore, the correct answer is that physical carcinogens like UV rays, X-rays, and gamma rays primarily cause damage to DNA, leading to mutations that can result in cancer.

**Final Answer**: Physical carcinogens like UV rays, X-rays, and gamma rays cause damage to DNA, leading to mutations and potentially resulting in cancer.

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