Antibodies present in colostrum which protect the new born from certain diseases is of

Options

A. ig G type
B. IgA type
C. Ig D type
D. Ig E type

Answer

**Step-by-Step Solution:**

1. **Understanding the Question:**
The question asks about the type of antibodies present in colostrum that protect newborns from certain diseases.

2. **Identifying Colostrum:**
Colostrum is the first milk produced by a mother after childbirth. It is rich in antibodies and nutrients that are essential for the newborn's immune system.

3. **Types of Immunoglobulins:**
There are several types of immunoglobulins (antibodies) in the human body, including:
- Immunoglobulin G (IgG)
- Immunoglobulin A (IgA)
- Immunoglobulin D (IgD)
- Immunoglobulin E (IgE)

4. **Analyzing Immunoglobulin G (IgG):**
- IgG is the most abundant antibody in the human body and is known to be present in colostrum.
- It plays a crucial role in providing passive immunity to the newborn, helping to protect against various infections.

5. **Analyzing Immunoglobulin A (IgA):**
- IgA is primarily found in mucosal areas and secretions such as saliva and tears, but it is not the main antibody in colostrum.

6. **Analyzing Immunoglobulin D (IgD):**
- IgD is mainly involved in signaling B cells to activate during an immune response and is not significantly present in colostrum.

7. **Analyzing Immunoglobulin E (IgE):**
- IgE is involved in allergic reactions and responses to parasitic infections, but it is not present in colostrum.

8. **Conclusion:**
Based on the analysis, the correct answer to the question is **Immunoglobulin G (IgG)**, as it is the antibody present in colostrum that protects newborns from certain diseases.

**Final Answer:**
The antibodies present in colostrum which protect the newborn from certain diseases is **Immunoglobulin G (IgG)**.

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