One the bais of heavy chains, immunoglobulins are classified into how many types ?

Options

A. A.Two
B. B.Three
C. C.Four
D. D.Five

Answer

**Step-by-Step Solution:**

1. **Understanding Immunoglobulins**: Immunoglobulins, also known as antibodies, are proteins produced by the immune system to identify and neutralize foreign objects like bacteria and viruses.

2. **Chains in Immunoglobulins**: Each immunoglobulin is made up of two types of chains: heavy chains and light chains. The classification of immunoglobulins is primarily based on the type of heavy chains they possess.

3. **Classification Based on Heavy Chains**: Immunoglobulins are classified into five distinct types based on their heavy chains. These types are:
- Immunoglobulin G (IgG)
- Immunoglobulin M (IgM)
- Immunoglobulin A (IgA)
- Immunoglobulin D (IgD)
- Immunoglobulin E (IgE)

4. **Conclusion**: Therefore, on the basis of heavy chains, immunoglobulins are classified into **five types**.

5. **Final Answer**: The correct option is **5**.

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