Which one of the following is widely distributed in a cell

Options

A. DNA
B. RNA
C. Chloroplasts
D. Spherosomes

Explanation

To determine which component is widely distributed in a cell, we can analyze the options provided in the question. Here’s a step-by-step breakdown of the reasoning process:

### Step 1: Identify the Options
We need to look at the options given in the question. The options typically include components like DNA, RNA, chloroplasts, and spherosomes.

### Step 2: Analyze Each Option
- **DNA**:
- Function: Acts as genetic material, synthesizes mRNA, and controls cell functions.
- Location: Found only in the nucleus of both plant and animal cells.
- Conclusion: Not widely distributed since it is restricted to the nucleus.

- **RNA**:
- Function: Plays a role in protein synthesis and can act as genetic material in some organisms (like viruses).
- Location: Present in both the nucleus (as genetic material) and the cytoplasm (for protein synthesis).
- Conclusion: Widely distributed since it is found in two locations.

- **Chloroplasts**:
- Function: Involved in photosynthesis.
- Location: Found only in plant cells, specifically in the cytoplasm.
- Conclusion: Not widely distributed since they are restricted to plant cells.

- **Spherosomes**:
- Function: Involved in the synthesis and storage of lipids.
- Location: Found only in plant cells, specifically in the cytoplasm.
- Conclusion: Not widely distributed since they are also restricted to plant cells.

### Step 3: Compare the Distribution
After analyzing the options, we see that:
- DNA is limited to the nucleus.
- Chloroplasts and spherosomes are restricted to plant cells.
- RNA is present in both the nucleus and cytoplasm of all cells.

### Step 4: Conclusion
Based on the analysis, the component that is widely distributed in a cell is **RNA**. Therefore, the answer to the question is **B) RNA**.

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