Question

Identify the types of breeding numbered 1 - 4 as illustrated by the given images.

• A. 1. Inbreeding; 2. Outcrossing; 3. Interspecific hybridisation; 4. Cross breeding
• B. 1. Crossbreeding; 2. Interspecific hybridization; 3. Outcrossing; 4. Inbreeding
• C. 1. Interspecific hybridization; 2. Crossbreeding; 3.Inbreeding; 4. Outcrossing
• D. 1.Outcrossing; 2.Interspecific hybridization; 3. Inbreeding; 4. Cross breeding

Answer 1

The correct option is A 1. Inbreeding; 2. Outcrossing; 3. Interspecific hybridisation; 4. Cross breeding

The type of breeding represented by 1 is inbreeding. It is the mating of organisms that are closely related through common ancestry. It is opposite to outcrossing as represented by 2. It is the mating of unrelated organisms (with respect to their ancestry). However, both inbreeding and outcrossing belong to the same breed.
3 represents interspecific hybridization. It is the cross between organisms of two different species. In this process, the offspring obtained is infertile. 4 represents crossbreeding in which organisms of two different breeds belonging to the same species are crossed and the offspring obtained are fertile.