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Breeding Reactor
Breeding is sexual reproduction that produces offspring, usually animals or plants. It can only occur between a male and a female animal or plant. Breeding may refer to: * Animal husbandry, through selected specimens such as dogs, horses, and rabbits * Breeding in the wild, the natural process of reproduction in the animal kingdom * Sexual reproduction of plants * Plant breeding, through specimens selected by humans for desirable traits Science * Breeding refers to nuclear transmutations that produce fuel for further reactions, in a breeder reactor to become fissile material or in a fusion reactor to produce tritium, see Biology * Breeding (sex act) * Breeding back, a breeding effort to re-assemble extinct breed genes * Breeding pair, bonded animals who cooperate to produce offspring * Breeding program, a planned breeding of animals or plants * Breeding season, the period during each year when a species reproduces * Captive breeding, raising plants or animals in zoos or oth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sexual Reproduction
Sexual reproduction is a type of reproduction that involves a complex life cycle in which a gamete ( haploid reproductive cells, such as a sperm or egg cell) with a single set of chromosomes combines with another gamete to produce a zygote that develops into an organism composed of cells with two sets of chromosomes ( diploid). This is typical in animals, though the number of chromosome sets and how that number changes in sexual reproduction varies, especially among plants, fungi, and other eukaryotes. In placental mammals, sperm cells exit the penis through the male urethra and enter the vagina during copulation, while egg cells enter the uterus through the oviduct. Other vertebrates of both sexes possess a cloaca for the release of sperm or egg cells. Sexual reproduction is the most common life cycle in multicellular eukaryotes, such as animals, fungi and plants. Sexual reproduction also occurs in some unicellular eukaryotes. Sexual reproduction does not occur in pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smart Breeding
Marker assisted selection or marker aided selection (MAS) is an indirect selection process where a trait of interest is selected based on a marker ( morphological, biochemical or DNA/RNA variation) linked to a trait of interest (e.g. productivity, disease resistance, abiotic stress tolerance, and quality), rather than on the trait itself.Ribaut, J.-M. et al., Genetic basis of physiological traits. In Application of Physiology in Wheat Breeding, CIMMYT, Mexico, 2001.Ribaut, J.-M. and Hoisington, D. A., Marker assisted selection: new tools and strategies. Trends in Plant Science, 1998, 3, 236–239.Rosyara, U.R. 2006. REQUIREMENT OF ROBUST MOLECULAR MARKER TECHNOLOGY FOR PLANT BREEDING APPLICATIONS. Journal of Plant Breeding Group 1: 67 – 72click to download/ref> This process has been extensively researched and proposed for plant- and animal- breeding. For example, using MAS to select individuals with disease resistance involves identifying a marker allele that is linked with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Outbreeding Depression
In biology, outbreeding depression happens when crosses between two genetically distant groups or populations result in a reduction of fitness. The concept is in contrast to inbreeding depression, although the two effects can occur simultaneously on different traits. Outbreeding depression is a risk that sometimes limits the potential for genetic rescue or augmentations. It is considered a postzygotic response, for it is noted usually in the performance of the progeny. Outbreeding depression manifests in two ways: * Generating intermediate genotypes that are less fit than either parental form. For example, selection in one population might favor a large body size, whereas in another population small body size might be more advantageous, while individuals with intermediate body sizes are comparatively disadvantaged in both populations. As another example, in the Tatra Mountains, the introduction of ibex from the Middle East resulted in hybrids which produced calves at the coldes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Manners
Etiquette ( /ˈɛtikɛt, -kɪt/) can be defined as a set of norms of personal behavior in polite society, usually occurring in the form of an ethical code of the expected and accepted social behaviors that accord with the conventions and norms observed and practiced by a society, a social class, or a social group. In modern English usage, the French word ''étiquette'' (label and tag) dates from the year 1750 and also originates from the French word for "ticket," possibly symbolizing a person’s entry into society through proper behavior. There are many important historical figures that have helped to shape the meaning of the term as well as provide varying perspectives. History In , the Ancient Egyptian vizier Ptahhotep wrote ''The Maxims of Ptahhotep'' (), a didactic book of precepts extolling civil virtues such as truthfulness, self-control, and kindness towards other people. Recurrent thematic motifs in the maxims include learning by listening to other people, bein ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inbreeding
Inbreeding is the production of offspring from the mating or breeding of individuals or organisms that are closely genetic distance, related genetically. By analogy, the term is used in human reproduction, but more commonly refers to the genetic disorders and other consequences that may arise from expression of wikt:deleterious, deleterious dominance (genetics), recessive traits resulting from incestuous sexual relationships and consanguinity. Animals avoid inbreeding only rarely. Inbreeding results in homozygous, homozygosity which can increase the chances of offspring being affected by recessive phenotypic trait, traits. In extreme cases, this usually leads to at least temporarily decreased Fitness (biology), biological fitness of a population (called inbreeding depression), which is its ability to survive and reproduce. An individual who inherits such deleterious traits is colloquially referred to as ''inbred''. The avoidance of expression of such deleterious recessive allel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hybrid (biology)
In biology, a hybrid is the offspring resulting from combining the qualities of two organisms of different varieties, subspecies, species or genera through sexual reproduction. Generally, it means that each cell has genetic material from two different organisms, whereas an individual where some cells are derived from a different organism is called a chimera. Hybrids are not always intermediates between their parents such as in blending inheritance (a now discredited theory in modern genetics by particulate inheritance), but can show hybrid vigor, sometimes growing larger or taller than either parent. The concept of a hybrid is interpreted differently in animal and plant breeding, where there is interest in the individual parentage. In genetics, attention is focused on the numbers of chromosomes. In taxonomy, a key question is how closely related the parent species are. Species are reproductively isolated by strong barriers to hybridization, which include genetic and morph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Good Breeding (other) , a social philosophy which advocates the improvement of human hereditary traits through various forms of intervention
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Good breeding may refer to: *Purebred, "cultivated varieties" of a species *Etiquette, the socially reinforced standards of conduct which show the actor to be cultured, polite, and refined *Eugenics Eugenics is a set of largely discredited beliefs and practices that aim to improve the genetic quality of a human population. Historically, eugenicists have attempted to alter the frequency of various human phenotypes by inhibiting the fer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Copulation (zoology)
In zoology, copulation is animal sexual behavior in which a male introduces sperm into the female's body, especially directly into her reproductive tract. This is an aspect of mating. Many aquatic animals use external fertilization, whereas internal fertilization may have developed from a need to maintain gametes in a liquid medium in the Late Ordovician epoch. Internal fertilization with many vertebrates (such as all reptiles, some fish, and most birds) occurs via cloacal copulation, known as cloacal kiss (see also hemipenis), while most mammals copulate vaginally, and many basal vertebrates reproduce sexually with external fertilization. In spiders and insects Spiders are often confused with insects, but they are not insects; instead, they are arachnids. Spiders have separate male and female sexes. Before mating and copulation, the male spider spins a small web and ejaculates on to it. He then stores the sperm in reservoirs on his large pedipalps, from which he tran ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Breeding, Kentucky
Breeding is an unincorporated community in Adair County, Kentucky Kentucky (, ), officially the Commonwealth of Kentucky, is a landlocked U.S. state, state in the Southeastern United States, Southeastern region of the United States. It borders Illinois, Indiana, and Ohio to the north, West Virginia to the ..., United States. Its elevation is 1001 feet (305 m). References Unincorporated communities in Adair County, Kentucky Unincorporated communities in Kentucky {{AdairCountyKY-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dust Breeding
''Doctor Who: The Monthly Adventures'', formerly subtitled as the ''Main Range'', is a series that consists of full-cast audio dramas based on the British science fiction television programme ''Doctor Who''. They are produced by Big Finish Productions and star one or more of the original actors to play the Doctor on television in the classic era of the programme. ''Doctor Who'' revolves around the adventures of an alien called the Doctor, whose people are called the Time Lords. He travels in space and time using a spaceship called the TARDIS, which can travel in time as well as space. While travelling, the Doctor works to save lives and liberate oppressed peoples by combating foes. The Doctor often travels with companions. The programme has a concept of regeneration, in which, when a Time Lord is fatally injured, their cells regenerate and they are reincarnated into a different body with a different personality, but the same memories. The series originally ran from 1963 to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Breeding The Spawn
''Breeding the Spawn'' is the second studio album by American death metal band Suffocation, released in May 1993 through Roadrunner Records. It was the band's first album with bassist Chris Richards, and their last to feature drummer Mike Smith for over a decade, until '' Souls to Deny'' (2004). Building off of the sound of Suffocation's debut album '' Effigy of the Forgotten'' (1991), it features more technical songwriting incorporating melodic and dynamic arrangements. The album was produced by Suffocation and Paul Bagin at Noise Lab in West Islip, New York. Suffocation originally planned to record the album in Florida with ''Effigy of the Forgotten'' producer Scott Burns, but were prevented from doing so by financial constraints and Roadrunner Records themselves, whose head of A&R, Monte Conner, wanted the band to return to the raw sound of their debut EP ''Human Waste'' (1991). ''Breeding the Spawn'' received mixed reviews from critics, with much of the criticism addressed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Breeding Death
Bloodbath is a Swedish death metal supergroup from Stockholm, formed in 1998. The band has released six full-length albums, two EPs and two DVDs depicting their performances at Wacken Open Air (in 2005) and Bloodstock Open Air (in 2010). The group consists of Martin Axenrot (ex-Opeth), Anders Nyström (ex-Katatonia) and Nick Holmes (Paradise Lost). History The band named themselves after the song "Blood Bath" from the album '' To the Gory End'' by extreme metal band Cancer. The initial lineup consisted of Mikael Åkerfeldt (Opeth) on vocals, Dan Swanö (Edge of Sanity, Nightingale) on drums, Anders "Blakkheim" Nyström (Katatonia, Diabolical Masquerade) on guitar, and Jonas Renkse (Katatonia, October Tide) on bass. Bloodbath released the EP '' Breeding Death'' within a year of forming. The EP was written within two days of the band forming. Nystrom said, "that just shows that if you are with a like-minded bunch of people who all have their history within death metal, all a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
