Question

Select the odd one out w.r.t out-breeding

• A. Zorse
• B. Tigon
• C. Liger
• D. Hisardale

Answer 1

The correct option is D Hisardale

Out-breeding is the mating of unrelated animals.

Out-breeding is of three types:

Out-crossing: Mating of animals within the same breed but having no common ancestors.

Cross-breeding: Mating of animals belonging to two different breeds.
Example: Hisardale is a cross-breed of sheep developed by crossing Bikaneri ewes (female sheep) and Marino rams (male sheep).

Interspecific hybridisation: Mating of animals of two different species. It is performed to obtain economically valuable hybrids. Zorse, tigon and liger are examples of interspecific hybrids.

A hybrid between male zebra and a female horse is called a zorse.

A liger is the hybrid offspring of a male lion and a female tiger.

A tigon is the hybrid offspring of a male tiger and a female lion.

All the options given in the question are examples of out-breeding.

However, Hisardale is an example of cross-breeding, whereas zorse, liger and tigon are examples of interspecific hybridisation.