Assertion : Hemoglobin is a monomeric protein .
Reason : It is made up of two polypeptide chains .

Options

A. If both assertion and Reason are true and the Reason is the correct explanation of the assertion .
B. If both Assertion and Reason ate true , but the reason is not the correct explanation of the assertion .
C. If Assertion is true , but Reason is false
D. if both Assertion and Reason are false.

Answer

To analyze the assertion and reason provided in the question, we can follow these steps:

### Step 1: Understand the Assertion
- The assertion states that "Hemoglobin is a monomeric protein."
- A monomeric protein is defined as a protein that consists of a single polypeptide chain.

### Step 2: Analyze the Structure of Hemoglobin
- Hemoglobin is a protein found in red blood cells responsible for transporting oxygen.
- Upon examining its structure, we find that hemoglobin is composed of four polypeptide chains: two alpha chains and two beta chains.

### Step 3: Determine the Type of Protein
- Since hemoglobin consists of four polypeptide chains, it is classified as a tetrameric protein, not a monomeric protein.
- Therefore, the assertion that hemoglobin is a monomeric protein is incorrect.

### Step 4: Understand the Reason
- The reason states that "It is made up of two polypeptide chains."
- However, as established, hemoglobin is made up of four polypeptide chains (two alpha and two beta), making this statement also incorrect.

### Conclusion
- Both the assertion and the reason are false. Hemoglobin is not a monomeric protein; it is a tetrameric protein made up of four polypeptide chains.

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

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