Select incorrect statement w.r.t. `T_(4)` bacteriophages

Options

A. Have polygonal
B. Motile organisms
C. Six all fibres
D. ds-DNA as the genetic material

Answer

To solve the question regarding the incorrect statement about T4 bacteriophages, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Structure of T4 Bacteriophages**:
- T4 bacteriophages are composed of a polygonal head, which contains the genetic material (DNA), and a rod-shaped tail with long fibers.

2. **Identify the Genetic Material**:
- The genetic material of T4 bacteriophages is DNA, which is a characteristic of many bacteriophages.

3. **Examine the Motility of T4 Bacteriophages**:
- Bacteriophages, including T4, do not possess the ability to move independently. They rely on the host bacteria for their life cycle and do not have motile structures.

4. **Review the Options Provided**:
- Look for the statement that incorrectly describes T4 bacteriophages. Since we established that they are not motile organisms, any option stating otherwise would be incorrect.

5. **Select the Incorrect Statement**:
- Based on the information gathered, the incorrect statement regarding T4 bacteriophages is that they are motile organisms.

### Final Answer:
The incorrect statement with respect to T4 bacteriophages is **Option B**, which states that T4 bacteriophages are motile organisms.

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