Sodium hypochlorite is used in

Options

A. Sterilizing the medium
B. Sterilizing the explant
C. Inoculation
D. Morphogenesis

Answer

**Step-by-Step Solution:**

1. **Understanding Sodium Hypochlorite:**
- Sodium hypochlorite is a chemical compound commonly used for its disinfecting properties. It is not an acid but rather a salt derived from hypochlorous acid. It is often used in various applications, including sanitation and disinfection.

2. **Identifying Uses of Sodium Hypochlorite:**
- Sodium hypochlorite is known for its ability to kill viruses, bacteria, fungi, and other microorganisms. This makes it a popular choice for disinfecting surfaces.

3. **Evaluating Options:**
- The question presents several options for the use of sodium hypochlorite. We need to analyze each option to determine its correct application.

4. **Option Analysis:**
- **Option 1: Sterilizing the Medium**
- Sodium hypochlorite is not suitable for sterilizing the growth medium because it can damage the nutrients and components of the medium.
- **Option 2: Sterilizing the Explant**
- An explant refers to a piece of plant tissue that is used in tissue culture to grow a new plant. Sodium hypochlorite is indeed used to sterilize the surface of explants before they are placed in culture, making this option correct.
- **Option 3 and 4: Other Uses**
- Sodium hypochlorite is not typically used for the other options presented, as it may cause damage to the substances involved.

5. **Conclusion:**
- Based on the analysis, the correct answer is that sodium hypochlorite is used for sterilizing the explant in tissue culture techniques.