Definition for User contributions

(newest | oldest) View (newer 50 | older 50) (20 | 50 | 100 | 250 | 500)

• 21:16, 25 September 2013 (diff | hist) . . (+178)‎ . . N Cytochrome c ‎ (Created page with "The Cytochrome complex, or cyt c is a small heme protein found loosely associated with the inner membrane of the mitochondrion. It belongs to the cytochrome c family of proteins.") (current)
• 21:06, 25 September 2013 (diff | hist) . . (+123)‎ . . Molecular clock ‎ (current)
• 21:06, 25 September 2013 (diff | hist) . . (+161)‎ . . N Effective population ‎ (Created page with "The effective population size is defined as the number of individuals in a population having an equal probability of contributing gametes to the next generation.") (current)
• 21:04, 25 September 2013 (diff | hist) . . (+75)‎ . . N Genetic load ‎ (Created page with "The number of deleterious alleles present in the gene pool of a population.") (current)
• 21:04, 25 September 2013 (diff | hist) . . (+81)‎ . . N Genetic erosion ‎ (Created page with "The loss of previously existing genetic diversity from a population or a species.") (current)
• 21:03, 25 September 2013 (diff | hist) . . (+549)‎ . . N In situ conservation ‎ (Created page with "In-situ conservation is on-site conservation or the conservation of genetic resources in natural populations of plant or animal species, such as forest genetic resources in natur...") (current)
• 21:03, 25 September 2013 (diff | hist) . . (+126)‎ . . N Ex situ conservation ‎ (Created page with "''Ex situ'' conservation involves the removal of organisms from their original habitat to an artificially maintained location.") (current)
• 21:03, 25 September 2013 (diff | hist) . . (+130)‎ . . N Population augmentation ‎ (Created page with "Population augmentation is adding new individuals to the population that do not come from reproduction of the resident population.") (current)
• 21:02, 25 September 2013 (diff | hist) . . (+226)‎ . . N Outbreeding depression ‎ (Created page with "A concept in biology, outbreeding depression refers to cases when offspring from crosses between individuals from different populations have lower fitness than progeny from cross...") (current)
• 18:02, 24 September 2013 (diff | hist) . . (+125)‎ . . N LacZ ‎ (Created page with "This gene encodes β-galactosidase, an intracellular enzyme that cleaves the disaccharide lactose into glucose and galactose.") (current)
• 17:41, 24 September 2013 (diff | hist) . . (+11)‎ . . Restriction endonuclease ‎ (Redirected page to Restriction enzyme) (current)
• 17:41, 24 September 2013 (diff | hist) . . (+22)‎ . . N Restriction endonuclease ‎ (Created page with "Restriction enzyme")
• 17:38, 24 September 2013 (diff | hist) . . (+677)‎ . . N Oligonucleotide ‎ (Created page with "Oligonucleotides are short, single-stranded DNA or RNA molecules that have a wide range of applications in genetic testing, research, and forensics. Commonly made in the laborato...") (current)
• 17:38, 24 September 2013 (diff | hist) . . (+382)‎ . . N Nylon ‎ (Created page with "Nylon is a generic designation for a family of synthetic polymers known generically as aliphatic polyamides, first produced on February 28, 1935, by Wallace Carothers at DuPont's...") (current)
• 17:37, 24 September 2013 (diff | hist) . . (+597)‎ . . N Nitrocellulose ‎ (Created page with "Nitrocellulose is a highly flammable compound formed by nitrating cellulose through exposure to nitric acid or another powerful nitrating agent. When used as a propellant or low-...") (current)
• 17:37, 24 September 2013 (diff | hist) . . (+144)‎ . . N Northern blot ‎ (Created page with "The northern blot is a technique used in molecular biology research to study gene expression by detection of RNA (or isolated mRNA) in a sample.") (current)
• 17:36, 24 September 2013 (diff | hist) . . (+59)‎ . . N Kilobase ‎ (Created page with "Unit of length for DNA fragments equal to 1000 nucleotides.") (current)
• 18:20, 22 September 2013 (diff | hist) . . (+293)‎ . . N Selector gene ‎ (Created page with "Homeotic selector genes confer segment identity in Drosophila. They encode homeodomain proteins which interact with Hox and other homeotic genes to initiate segment-specific gene...") (current)
• 18:20, 22 September 2013 (diff | hist) . . (+710)‎ . . Maternal effect ‎ (current)
• 18:19, 22 September 2013 (diff | hist) . . (+610)‎ . . N Segment polarity gene ‎ (Created page with "A segmentation gene is a generic term for a gene whose function is to specify tissue pattern in each repeated unit of a segmented organism. In the fruit fly ''Drosophila melanoga...") (current)
• 18:17, 22 September 2013 (diff | hist) . . (+113)‎ . . N Aeroallergen ‎ (Created page with "An aeroallergen is any airborne substance, such as pollen or spores, which triggers an allergic reaction.") (current)
• 18:16, 22 September 2013 (diff | hist) . . (+351)‎ . . N Maternal-effect gene ‎ (Created page with "1) A gene from the mother's genome in which its phenotype in the zygote is influenced from the mother's genotype, not from the zygote's. <span style="line-height: 1.5em;">2) A g...") (current)
• 18:15, 22 September 2013 (diff | hist) . . (+770)‎ . . N Methylation ‎ (Created page with "In the chemical sciences, methylation denotes the addition of a methyl group to a substrate or the substitution of an atom or group by a methyl group. Methylation is a form of al...") (current)
• 22:30, 13 September 2013 (diff | hist) . . (+220)‎ . . N Lysogeny ‎ (Created page with "The fusion of the nucleic acid of a bacteriophage with that of a host bacterium so that the potential exists for the newly integrated genetic material to be transmitted to daught...") (current)
• 22:29, 13 September 2013 (diff | hist) . . (+73)‎ . . N Prototroph ‎ (Created page with "Microbes that can grow on minimal medium and are assumed to be wild type.")
• 22:34, 13 August 2013 (diff | hist) . . (+594)‎ . . N Approbation ‎ (Created page with "'''Meaning''' A formal or official act of approving; praise, usually given with pleasure or enthusiasm. '''Sentence''' The senate signaled its approbation of the new plan by...") (current)
• 21:39, 7 August 2013 (diff | hist) . . (+1,080)‎ . . N Chandraesekhar Limit ‎ (Created page with "The Chandrasekhar limit is the maximum mass of a stable white dwarf star. The limit was first published by Wilhelm Anderson and E. C. Stoner, and was named after Subrahmanyan Cha...") (current)
• 16:47, 7 August 2013 (diff | hist) . . (+135)‎ . . N Gravitational waves ‎ (Created page with "In physics, gravitational waves are ripples in the curvature of spacetime that propagate as a wave, travelling outward from the source.") (current)
• 16:47, 7 August 2013 (diff | hist) . . (+1,212)‎ . . N Einstein's theory of general relativity ‎ (Created page with "General relativity was Einstein’s theory of gravity, published in 1915, which extended special relativity to take into account non-inertial frames of reference — areas that a...") (current)
• 16:46, 7 August 2013 (diff | hist) . . (+130)‎ . . N Escape velocity ‎ (Created page with "In physics, escape velocity is the speed at which the kinetic energy plus the gravitational potential energy of an object is zero.") (current)
• 16:46, 7 August 2013 (diff | hist) . . (+30)‎ . . N Escape speed ‎ (Redirected page to Escape velocity) (current)
• 16:43, 7 August 2013 (diff | hist) . . (+473)‎ . . N Binary system ‎ (Created page with "A binary system is a system of two objects in space (usually stars, but also brown dwarfs, planets, galaxies, or asteroids) which are so close that their gravitational interactio...") (current)
• 16:43, 7 August 2013 (diff | hist) . . (+463)‎ . . N Schwartzschild radius ‎ (Created page with "The Schwarzschild radius (sometimes historically referred to as the '''gravitational radius''') is the radius of a sphere such that, if all the mass of an object is compressed wi...") (current)
• 16:42, 7 August 2013 (diff | hist) . . (+296)‎ . . N Speed of light ‎ (Created page with "The speed of light in vacuum, commonly denoted c, is a universal physical constant important in many areas of physics. Its value is exactly 299,792,458 metres per second, a figur...") (current)
• 16:42, 7 August 2013 (diff | hist) . . (+114)‎ . . N White dwarf ‎ (Created page with "A white dwarf, also called a degenerate dwarf, is a stellar remnant composed mostly of electron-degenerate matter.") (current)
• 16:41, 7 August 2013 (diff | hist) . . (+93)‎ . . N Crab Nebula ‎ (Created page with "The Crab Nebula is a supernova remnant and pulsar wind nebula in the constellation of Taurus.") (current)
• 16:41, 7 August 2013 (diff | hist) . . (+525)‎ . . N Nova ‎ (Created page with "A nova is a cataclysmic nuclear explosion in a white dwarf star. It is caused by the accretion of hydrogen on to the surface of the star, which ignites and starts nuclear fusion ...") (current)
• 16:40, 7 August 2013 (diff | hist) . . (+74)‎ . . N Supernova ‎ (Created page with "A supernova is a stellar explosion that is more energetic than a nova.") (current)
• 16:40, 7 August 2013 (diff | hist) . . (+583)‎ . . N Gamma ray ‎ (Created page with "Gamma radiation, also known as gamma rays, and denoted by the Greek letter γ, refers to electromagnetic radiation of high frequency and therefore high energy per photon. Gamma r...") (current)
• 16:39, 7 August 2013 (diff | hist) . . (+187)‎ . . N Hypernova ‎ (Created page with "A hypernova is a type of supernova explosion with an energy substantially higher than standard supernovae. Such explosions are believed to be the origin of long-duration gamma-ra...") (current)
• 16:39, 7 August 2013 (diff | hist) . . (+163)‎ . . N Neutron star ‎ (Created page with "A neutron star is a type of stellar remnant that can result from the gravitational collapse of a massive star during a Type II, Type Ib or Type Ic supernova event.") (current)
• 11:47, 7 August 2013 (diff | hist) . . (+127)‎ . . N Keplerian equation ‎ (Created page with "In orbital mechanics, Kepler's equation relates various geometric properties of the orbit of a body subject to a central force.") (current)
• 11:46, 7 August 2013 (diff | hist) . . (+706)‎ . . N H-R diagram ‎ (Created page with "The Hertzsprung–Russell diagram is a scatter graph of stars showing the relationship between the stars' absolute magnitudes or luminosities versus their spectral types or class...") (current)
• 00:00, 7 August 2013 (diff | hist) . . (+194)‎ . . N Galaxy ‎ (Created page with "A galaxy is a massive, gravitationally bound system consisting of stars, stellar remnants, an interstellar medium of gas and dust, and, dark matter, an important but poorly under...") (current)
• 00:00, 7 August 2013 (diff | hist) . . (+4)‎ . . Galactic halo ‎ (current)
• 00:00, 7 August 2013 (diff | hist) . . (+124)‎ . . N Galactic halo ‎ (Created page with "The galactic halo is an extended, roughly spherical component of a galaxy, which extends beyond the main, visible component.")
• 23:58, 6 August 2013 (diff | hist) . . (+327)‎ . . N Henrietta Leavitt ‎ (Created page with "Henrietta Leavitt was a Harvard astronomer found the period-luminosity relationship for the Cepheid variables from her work on the Large Magellanic Cloud. The discovery of these ...") (current)
• 23:56, 6 August 2013 (diff | hist) . . (+141)‎ . . N Cepheid ‎ (Created page with "Cepheids are large mass variable stars with a definite relationship between period and luminosity, which can be as high as thousands of suns.") (current)
• 23:55, 6 August 2013 (diff | hist) . . (+85)‎ . . N Sagittarius ‎ (Created page with "Sagittarius is a constellation of the zodiac, the one containing the galactic center.") (current)
• 23:55, 6 August 2013 (diff | hist) . . (+223)‎ . . N Milky Way ‎ (Created page with "The Milky Way is the galaxy that contains our Solar System. The Milky Way is a barred spiral galaxy 100,000–120,000 light-years in diameter containing 100–400 billion st...") (current)

(newest | oldest) View (newer 50 | older 50) (20 | 50 | 100 | 250 | 500)