Assertion : Plasmids are single stranded extra chromosomal DNA.
Reason: Plasmids are found in Eukaryotic cells.

Options

A. Given below are assertion and reason. Point out if both are true with reason being correct exaplanation
B. both true but reason not correct explanation
C. assertion true but reason is wrong
D. both wrong

Answer

To analyze the given assertion and reason, we will break down the statements step by step.

### Step-by-Step Solution

1. **Understanding the Assertion**:
- The assertion states: "Plasmids are single-stranded extra chromosomal DNA."
- This statement is **incorrect**. Plasmids are actually **double-stranded** circular DNA molecules that exist outside the chromosomal DNA in prokaryotes. They can replicate independently of the chromosomal DNA.

2. **Understanding the Reason**:
- The reason states: "Plasmids are found in Eukaryotic cells."
- This statement is also **incorrect**. Plasmids are primarily found in **prokaryotic cells** (such as bacteria). While some eukaryotic cells can contain plasmid-like structures (such as yeast), the classic definition of plasmids pertains to prokaryotes.

3. **Conclusion**:
- Since both the assertion and the reason are incorrect, we can conclude that neither statement is true. Therefore, the correct answer to the assertion-reason question is that both the assertion and reason are false.

### Final Answer:
Both the assertion and the reason are false.