Select the incorrect statement from the following.

Options

A. Bird flu, which is normally seen as a common disease of domenticated fowls, is a viral disease.
B. Outcrossing is the practice of animal mating within the same breed, with no common ancestors on either side of their pedigree up to 4-6 generations.
C. Rohu and common carp are some common freshwater fishes used for consumption.
D. Pusa komal is a crop variety of chilli which is resistant to bacterial blight.

Answer

To solve the question, we need to identify the incorrect statement among the provided options. Let's analyze each statement step by step.

### Step-by-Step Solution:

1. **Analyzing the First Statement:**
- The statement claims that bird flu is a viral disease commonly seen in domesticated fowls.
- Bird flu is indeed caused by viruses, specifically the H5N1 virus, and it primarily affects birds but can also infect humans.
- **Conclusion:** This statement is **correct**.

2. **Analyzing the Second Statement:**
- The statement describes outcrossing as a practice of animal mating within the same breed without common ancestors for 4 to 6 generations.
- Outcrossing (or outbreeding) refers to the mating of animals from different genetic backgrounds to enhance genetic diversity.
- The description of outcrossing in this statement is misleading since it suggests mating within the same breed, which is not entirely accurate.
- **Conclusion:** This statement is **incorrect**.

3. **Analyzing the Third Statement:**
- The statement mentions that Rohu and common carp are both freshwater fish used for consumption.
- Both Rohu (Labeo rohita) and common carp (Cyprinus carpio) are indeed freshwater fish and are commonly consumed.
- **Conclusion:** This statement is **correct**.

4. **Analyzing the Fourth Statement:**
- The statement claims that Pusa Komal is a crop variety of chili resistant to bacterial blight.
- However, Pusa Komal is actually a variety of cowpea, not chili, and it was developed using hybridization techniques.
- **Conclusion:** This statement is **incorrect**.

### Final Conclusion:
- The incorrect statement among the options provided is the **second statement** regarding outcrossing, as well as the **fourth statement** regarding Pusa Komal.