An F1 hybrid (or filial 1 hybrid) is the first filial generation of offspring of distinctly different parental types. F1 hybrids are used in genetics, and in selective breeding, where it may appear as F1 crossbreed. The term is sometimes written with a subscript, as F1 hybrid. The offspring of distinctly different parental types produce a new, uniform phenotype with a combination of characteristics from the parents. In fish breeding, those parents frequently are two closely related fish species, while in plant and animal genetics the parents usually are two inbred lines. Mules are F1 hybrids between horse and donkey. Today, certain domestic–wild hybrid breeds, such as the Savannah cat, are classified by their filial generation number.
Gregor Mendel focused on patterns of inheritance and the genetic basis for variation. In his cross-pollination experiments involving two true-breeding, or homozygous, parents, Mendel found that the resulting F1 generation were heterozygous and consistent. The offspring showed a combination of the phenotypes from each parent that were genetically dominant. Mendel’s discoveries involving the F1 and F2 generations laid the foundation for modern genetics.
Hybrid may refer to:
A Hybrid language can refer to:
Hybrid is a downloadable third-person shooter video game released on August 8, 2012 for Xbox Live Arcade. It was developed by Bellevue, Washington-based 5th Cell. Utilizing the Source game engine from Valve Corporation, this is the first Xbox 360 title from developer 5th Cell.
In 2032, a catastrophic accident has obliterated Australia and sent the world into turmoil. An alien race called the Variants compete with the surviving humans, called the Paladins, to collect a powerful substance known as dark matter.
Players choose between the Variant faction and the Paladin faction when they begin playing. The five included continents (Australia having been obliterated and Antarctica having been excluded) have been broken up into sections in which the two factions compete for dark matter. By playing in a section, a player increases their faction's percentage in that section. When a faction reaches 100% in a section first, that faction will get two pieces of dark matter. If the other faction reaches 100% in that section after that, they will receive 1 piece of dark matter. The two factions race to collect 200 pieces of dark matter before the other.