1. Selective breeding
Selective breeding (also called artificial selection) is the process by which humans breed other animals and plants for particular traits.

2. Examples- Brassicas

4. Different varieties of maize

5. Examples- animals

6. Bred animals are known as breeds, while bred plants are known as varieties, cultigens, or cultivars.
Traditional artificial selection works by breeding specific phenotypes together.
Modern selective breeding utilizes artificial insemination, embryo transfer, cloning and Marker assisted selection (MAS). It can allow selective breeding using the genotype of organisms
Line breeding and inbreeding may cause inbreeding depression.

7. Belgian blue cattle have been bred for meat production

8. Selective breeding may lead to problems
A chicken who cannot stand up as its body is so heavy with muscle.