Choose correct option w.r.t tissue culture

Options

A. The whole plant can be regenerted from explant
B. Only apical meristem part of plant can grow in test tube under sterile conditions
C. it is not releated to totipotency
D. Sterilisation is not a pre-requisite

Answer

### Step-by-Step Solution:

1. **Understanding Tissue Culture**: Tissue culture is a biotechnological technique that involves growing plant cells, tissues, or organs in a controlled, sterile environment. The goal is to regenerate whole plants from small pieces of plant tissue.

2. **Identifying the X Plant**: The term "X plant" refers to a piece of tissue taken from the original or parent plant. This can be a single piece or multiple pieces of tissue.

3. **Evaluating the Options**:
- **Option A**: "The whole plant can be regenerated from X plant."
- This statement is true because tissue culture allows for the regeneration of a complete plant from a small piece of tissue (X plant).

- **Option B**: "Only apical meristem part of plant can grow in test tube under sterile conditions."
- This statement is false. While the apical meristem can be used, tissue culture can involve various parts of the plant, not just the apical meristem.

- **Option C**: "It is not related to totipotency."
- This statement is false. Tissue culture is indeed related to totipotency, which is the ability of a single cell to develop into a complete organism.

- **Option D**: "Sterilization is not a prerequisite."
- This statement is also false. Sterilization is crucial in tissue culture to prevent contamination and ensure successful growth.

4. **Conclusion**: After evaluating all options, the only correct statement is Option A: "The whole plant can be regenerated from X plant."

### Final Answer:
The correct option with respect to tissue culture is **Option A**: The whole plant can be regenerated from X plant.

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