Maximum number of paratopes are present in

Options

A. IgA
B. IgD
C. IgG
D. IgM

Answer

To determine which immunoglobulin has the maximum number of paratopes, we will analyze the options provided: IgA, IgD, IgG, and IgM.

### Step-by-Step Solution:

1. **Understanding Paratopes**:
- A paratope is the specific region on an antibody that binds to an epitope on an antigen. Each antibody can have multiple paratopes depending on its structure.

2. **Identifying the Number of Paratopes in Each Immunoglobulin**:
- **IgA (Immunoglobulin A)**: Typically has 4 paratopes.
- **IgD (Immunoglobulin D)**: Has 2 paratopes.
- **IgG (Immunoglobulin G)**: Also has 2 paratopes.
- **IgM (Immunoglobulin M)**: Has 10 paratopes.

3. **Comparing the Numbers**:
- Now, we compare the number of paratopes:
- IgA: 4 paratopes
- IgD: 2 paratopes
- IgG: 2 paratopes
- IgM: 10 paratopes

4. **Conclusion**:
- Among all the immunoglobulins listed, IgM has the highest number of paratopes, which is 10.

5. **Final Answer**:
- The immunoglobulin with the maximum number of paratopes is **IgM**.