selection for breeding purposes

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• Selection methods in plant breeding based on mode of reproduction — This article discusses Selection methods in plant breeding based on mode of reproduction. Some plants reproduce by (more or less strict) self fertilization where pollen from a plant will fertilise reproductive cells or ovules of the same plant.… …   Wikipedia

• animal breeding — Introduction  controlled propagation of domestic animals in order to improve desirable qualities. Humanity has been modifying domesticated animals to better suit human needs for centuries. Selective breeding involves using knowledge from several… …   Universalium

• Horse breeding — Mares and foals Horse breeding is reproduction in horses, and particularly the human directed process of selective breeding of animals, particularly purebred horses of a given breed. Planned matings can be used to produce specifically desired… …   Wikipedia

• The Descent of Man, and Selection in Relation to Sex —   …   Wikipedia

• Group selection — In evolutionary biology, group selection refers to the idea that alleles can become fixed or spread in a population because of the benefits they bestow on groups, regardless of the alleles effect on the fitness of individuals within that group.… …   Wikipedia

• Monogamy — For the film, see Monogamy (film). Relationships …   Wikipedia

• environment — environmental, adj. environmentally, adv. /en vuy reuhn meuhnt, vuy euhrn /, n. 1. the aggregate of surrounding things, conditions, or influences; surroundings; milieu. 2. Ecol. the air, water, minerals, organisms, and all other external factors… …   Universalium

• Animal testing — A white Wistar lab rat Description Around 50–100 million vertebrate animals are used in experiments annually. Subjects Animal testing, scien …   Wikipedia

• Boer goat — The Boer goat was developed in South Africa in the early 1900s for meat production. Their name is derived from the Dutch word Boer meaning farmer. The Boer goat was probably bred from the indigenous goats of the Namaqua Bushmen and the Fooku… …   Wikipedia

• agriculture, origins of — Introduction  the active production of useful plants or animals in ecosystems that have been created by people. Agriculture has often been conceptualized narrowly, in terms of specific combinations of activities and organisms wet rice production… …   Universalium

• Animal sexual behaviour — This article is about the sexual behaviour of non human animals; see also Human sexuality and Sexual reproduction. Animal sexual behaviour takes many different forms, even within the same species. Among animals other than humans, researchers have …   Wikipedia