The polypeptide chains present in gamma immunoglobulin are

Options

A. 2
B. 4
C. 6
D. 8

Explanation

To solve the question regarding the number of polypeptide chains present in gamma immunoglobulin, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Gamma Immunoglobulin**:
- Gamma immunoglobulin is a type of antibody, also known as immunoglobulin G (IgG). Antibodies are proteins produced by the immune system to identify and neutralize pathogens such as bacteria and viruses.

2. **Structure of Antibodies**:
- Antibodies have a characteristic Y-shaped structure. This structure is composed of polypeptide chains.

3. **Counting Polypeptide Chains**:
- Each antibody molecule typically consists of four polypeptide chains.
- Out of these four chains, two are classified as heavy chains and two as light chains.

4. **Conclusion**:
- Therefore, the total number of polypeptide chains present in gamma immunoglobulin is 4.

### Final Answer:
The polypeptide chains present in gamma immunoglobulin are **4**.

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