Select incorrect pair w. r. t. animals and methods of breeding by which they were developed.

Options

A. Karan Swiss - Cross breeding
B. Hisardale- cross breeding
C. Mule - cross breeding
D. Hinny - Interspecific hybridization

Answer

To solve the question of selecting the incorrect pair with respect to animals and methods of breeding by which they were developed, we will analyze each option provided.

### Step-by-Step Solution:

1. **Understanding Crossbreeding**:
- Crossbreeding involves mating individuals from different breeds within the same species or closely related species to produce offspring with desirable traits.
- Example: Current Swiss is a breed of cattle that is developed through crossbreeding, specifically with Sahiwal cows to enhance milk production.

**Hint**: Look for pairs that involve different species or incorrect breeding methods.

2. **Analyzing Hisardales**:
- Hisardales are produced through crossbreeding between Bikaneri ewes and Merino rams. This is a correct example of crossbreeding aimed at improving wool and milk production.

**Hint**: Check if the animals in the pair belong to the same species or closely related species.

3. **Evaluating Mule**:
- A mule is produced by mating a horse (Equus ferus caballus) with a donkey (Equus africanus asinus). This is an example of interspecific hybridization, meaning it occurs between different species.
- Mules are typically infertile, which is a key characteristic of hybrids produced from different species. This makes the pairing incorrect in the context of traditional crossbreeding.

**Hint**: Remember that hybrids from different species often have fertility issues.

4. **Considering Hini**:
- Hini is a hybrid resulting from the mating of different species of horses and donkeys. This is a correct example of interspecific hybridization.

**Hint**: Identify if the hybrid is fertile or infertile, as it can indicate the breeding method used.

5. **Conclusion**:
- After analyzing all the pairs, the incorrect pair is the one involving the mule, as it represents interspecific hybridization rather than traditional crossbreeding.

### Final Answer:
The incorrect pair with respect to animals and methods of breeding is the **Mule**, as it is produced through interspecific hybridization (between horse and donkey), not crossbreeding.

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