Pick up the wrong statement

Options

A. Pectinase and cellulase dissolve cell wall
B. Some cyanobacteria form symbiotic association with fern Azolla
C. Regeneration of cell wall in somatic hybridisation is induced by PEG
D. Shoot regenertion in callus is promoted by cytokinin like BAP.

Answer

To solve the question "Pick up the wrong statement," we will analyze each of the provided statements one by one to determine which one is incorrect.

### Step-by-Step Solution:

1. **Statement 1: Pectinase and cellulase dissolve cell wall.**
- **Analysis:** Pectinase breaks down pectin, and cellulase breaks down cellulose, both of which are components of the plant cell wall. Therefore, this statement is correct.

2. **Statement 2: Some cyanobacteria form symbiotic association with fern Azolla.**
- **Analysis:** Azolla is known to form a symbiotic relationship with the cyanobacterium Anabaena, which helps in nitrogen fixation. This statement is also correct.

3. **Statement 3: Regeneration of cell wall in somatic hybridization is induced by PEG.**
- **Analysis:** Polyethylene glycol (PEG) is used in protoplast fusion to facilitate the merging of cells, but it is not involved in the regeneration of the cell wall in somatic hybridization. This statement is incorrect.

4. **Statement 4: Shoot regeneration in callus is promoted by cytokinin like BAP.**
- **Analysis:** Cytokinins, such as Benzylaminopurine (BAP), are indeed known to promote shoot regeneration in callus tissue. This statement is correct.

### Conclusion:
The wrong statement among the options is **Statement 3: Regeneration of cell wall in somatic hybridization is induced by PEG.**

### Final Answer:
**Option C** is the wrong statement.

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