The contribution of cytoplasmic DNA in cell's total DNA is

Options

A. `65%`
B. `1-5% `
C. `10-12%`
D. `0-0.5%`

Answer

To solve the question regarding the contribution of cytoplasmic DNA in a cell's total DNA, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Types of DNA**:
- Recognize that DNA in a cell can be categorized into nuclear DNA and cytoplasmic DNA. Nuclear DNA is primarily found in the nucleus, while cytoplasmic DNA is found in organelles such as mitochondria and chloroplasts.

2. **Identify Cytoplasmic DNA**:
- Cytoplasmic DNA refers to the DNA present outside the nucleus, specifically in organelles like mitochondria and chloroplasts. This DNA is often referred to as extra chromosomal DNA.

3. **Determine the Contribution of Cytoplasmic DNA**:
- It is essential to know the percentage of cytoplasmic DNA in relation to the total DNA in the cell. Research and biological studies indicate that cytoplasmic DNA constitutes a small fraction of the total DNA.

4. **Analyze the Options Given**:
- The options provided are:
- 65%
- 1 to 5%
- 10 to 12%
- 0 to 0.5%

5. **Select the Correct Option**:
- Based on biological knowledge, cytoplasmic DNA typically accounts for about 1 to 5% of the total DNA in a cell. Therefore, the correct answer is **1 to 5%**.

### Final Answer:
The contribution of cytoplasmic DNA in a cell's total DNA is **1 to 5%**.

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