Assertion: The name of any restriction endonuclease ends with a Roman number
Reason :Roman number indicate the order in which the enzyme were discovered from that strain of bacteria

Options

A. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion
B. It both Assertion & Reason are True but Reason is not a correct explanation of the Assetion
C. If Assertion is True but the Reason is False
D. If both Assertion & Reason are false

Answer

To solve the assertion-reason question, let's break it down step by step:

### Step 1: Understand the Assertion
The assertion states that "The name of any restriction endonuclease ends with a Roman number."

**Analysis**:
- This is true. The nomenclature of restriction endonucleases typically includes a Roman numeral at the end, which indicates the specific enzyme from a particular strain of bacteria.

### Step 2: Understand the Reason
The reason given is "Roman number indicates the order in which the enzymes were discovered from that strain of bacteria."

**Analysis**:
- This statement is also true. The Roman numeral indeed signifies the order of discovery of the restriction enzymes from that specific strain of bacteria.

### Step 3: Determine the Relationship
Now, we need to determine if the reason correctly explains the assertion.

- The assertion is about the naming convention of restriction endonucleases, while the reason explains that the Roman numeral indicates the order of discovery. Since the assertion is true and the reason accurately describes the significance of the Roman numeral in the naming, the reason is a correct explanation of the assertion.

### Step 4: Choose the Correct Option
Based on the analysis:
- Both the assertion and reason are true, and the reason is a correct explanation of the assertion.

Thus, the correct answer is **Option A**: If both assertion and reason are true and the reason is a correct explanation of the assertion.

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