Read the given statements and select the correct option.
Statement 1 : Hemoglobin is an example of quatenary structure of proteins.
Statement 2 : Hemoglobin molecule is composed of four polypeptide chains-two`alpha`-chains and two `beta`-chains.

Options

A. Both statements 1 and 2 are correct.
B. Statement 1 is correct but statement 2 is incorrect.
C. Statement 1 is incorrect but statement 2 is correct.
D. Both statements 1 and 2 are incorrect.

Explanation

To solve the question, we need to evaluate the two statements provided about hemoglobin and determine their correctness.

### Step-by-Step Solution:

1. **Understanding Statement 1**:
- The first statement claims that "Hemoglobin is an example of quaternary structure of proteins."
- **Explanation**: Proteins can have four levels of structure: primary, secondary, tertiary, and quaternary. The quaternary structure refers to a protein that consists of more than one polypeptide chain. Hemoglobin, which carries oxygen in the blood, is indeed made up of multiple polypeptide chains.
- **Conclusion**: This statement is **true**.

2. **Understanding Statement 2**:
- The second statement claims that "Hemoglobin molecule is composed of four polypeptide chains - two alpha chains and two beta chains."
- **Explanation**: Hemoglobin is a globular protein made up of four polypeptide subunits: specifically, two alpha (α) chains and two beta (β) chains. This composition is crucial for its function in oxygen transport.
- **Conclusion**: This statement is also **true**.

3. **Final Evaluation**:
- Since both statements are true, we conclude that the correct option is that both Statement 1 and Statement 2 are correct.

### Final Answer:
Both Statement 1 and Statement 2 are correct.

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