Artificial selection is the process by which humans choose individual organisms with certain phenotypic trait values for breeding. If there is additive genetic variance for the selected trait, it will respond to the selection, that is, the trait will evolve. All of our domesticated species, including crop plants, livestock, and pets, are the products of artificial selection for desirable traits, such as seeds and fruits that do not disperse readily, increased meat and milk production, and docile behavior.
The synthesis of ATP from ADP and Pi is an exergonic reaction. In mitochondria, ATP synthesis is driven by the flow of proton down a concentration gradient established by glycolysis.
