Humans have created diversity in domesticated animals and plants This diversity has some drawbacks due to migration, trade and an increase in development in agriculture worldwide specifically in China, India and Japan.
Humans have been successful in creating distinct breeds in dogs population with selective traits. The genetic variation in breed is decline their population size and their mating are controlled by humans. The genetic variation among breeds increased as they started to diverge. The end point is the population which have more genetic diversity than their closest relative wild wolf.
Birth control pills contain a combination of hormones that prevent the formation of the ovule, by prevent the formation of the luteinizing follicle. There are several types of birth control pills,but the process is generally the same
If white roses and red roses are cross-bred by scientists, it would be artifical selection. If they were crossed in nature, it is called crossed pollination.
