Complementation (genetics)
In genetics, complementation occurs when two strains of an organism with different homozygous recessive mutations that produce the same mutant phenotype( for example, a change in wing structure in flies) produce offspring with the wild- type phenotype when mated or crossed.
Complementation will occur only if the mutations are in different genes.
In this case, each strain's genome supplies the wild- type allele to" complement" the mutated allele of the other strain's genome.
Since the mutations are recessive, the offspring will display the wild- type phenotype.
A complementation test( sometimes called a" cis- trans" test) can be used to test whether the mutations in two strains are in different genes.
Complementation will not occur if the mutations are in the same gene.
The convenience and essence of this test is that the mutations that produce a phenotype can be assigned to different genes without the exact knowledge of what the gene product is doing on a molecular level.
The complementation test was developed by American geneticist Edward B. Lewis.
If the combination of two genomes containing different recessive mutations yields a mutant phenotype, then there are three possibilities:
The Movies: Stunts & Effects
The Movies: Stunts and Effects is an expansion pack for the PC business simulation game" The Movies".
The expansion pack is developed by Lionhead Studios.
It was released in June 2006.
The Mac version of The Movies: Stunts and Effects was developed by Robosoft Technologies and published by Feral Interactive.
It was released during Macworld 2008.
At the Movies
At the Movies may refer to:
A Night at the Movies
A Night at the Movies can be:
Peace in the Valley (disambiguation)
Peace in the Valley:
Saturday Night at the Movies (disambiguation)
Saturday Night at the Movies may refer to:
The Mutations
The Mutations is a low- budget 1974 British- American science fiction/ horror film directed by Jack Cardiff.
The film was also released under the title The Freakmaker.
Valley of Mexico
The Valley of Mexico is a highlands plateau in central Mexico roughly coterminous with present- day Mexico City and the eastern half of the State of Mexico.
Surrounded by mountains and volcanoes, the Valley of Mexico was a centre for several pre-Columbian civilizations, including Teotihuacan, the Toltec, and the Aztec.
The ancient Aztec term" Anahuac( Land Between the Waters)" and the phrase Basin of Mexico are both used at times to refer to the Valley of Mexico.
The Basin of Mexico became a well known site that epitomized the scene of early Classic Mesoamerican cultural development as well.
The Valley of Mexico is located in the Trans- Mexican Volcanic Belt.
The valley contains most of the Mexico City Metropolitan Area, as well as parts of the State of Mexico, Hidalgo, Tlaxcala and Puebla.
The Valley of Mexico can be subdivided into four basins, but the largest and most-studied is the area which contains Mexico City.
This section of the valley in particular is colloquially referred to as the" Valley of Mexico".
The valley has a minimum elevation of above sea level and is surrounded by mountains and volcanoes that reach elevations of over.
It is an enclosed valley with no natural outlet for water to flow and a gap to the north where there is a high mesa but no high mountain peaks.
Within this vulnerable watershed all the native fishes were extinct by the end of the 20th century.
Hydrologically, the valley has three features.
The first feature is the lakebeds of five now- extinct lakes, which are located in the southernmost and largest of the four sub-basins.
The other two features are piedmont, and the mountainsides that collect the precipitation that eventually flows to the lake area.
These last two are found in all four of the sub- basins of the valley.
Today, the Valley drains through a series of artificial canals to the Tula River, and eventually the Pánuco River and the Gulf of Mexico.
Seismic activity is frequent here, and the valley is considered an earthquake- prone zone.
The valley has been inhabited for at least 12,000 years, attracting humans with its mild climate( average temperatures between 12 and 15 ° C, or 54 and 59 ° F), abundant game and ability to support large- scale agriculture.
Civilizations that have arisen in this area include the Teotihuacan( 800 BC to 800 AD) the Toltec Empire( 10th to 13th century) and the Aztec Empire( 1325 to 1521).
When the Spaniards arrived in the Valley of Mexico, it had one of the highest population concentrations in the world with about one million people.
After the Conquest, the Spaniards rebuilt the largest and most dominant city here, Tenochtitlan, renaming it Mexico City.
The valley used to contain five lakes called Lake Zumpango, Lake Xaltocan, Lake Xochimilco, Lake Chalco, and the largest, Texcoco covering about of the valley floor, but as the Spaniards expanded Mexico City, they began to drain the lakes' waters to control flooding.
Although violence and disease significantly lowered the population of the valley after the Conquest, by 1900 it was again over one million people.
The 20th and 21st centuries have seen an explosion of population in the valley along with the growth of industry.
Since 1900, the population has doubled every fifteen years.
Today, around 21 million people live in the Mexico City Metropolitan Area which extends throughout almost all of the valley into the states of Mexico and Hidalgo.
The growth of a major urban, industrial centre in an enclosed basin has created significant air and water quality issues for the valley.
Wind patterns and thermal inversions trap contaminants in the valley.
Over-extraction of ground water has caused new flooding problems for the city as it sinks below the historic lake floor.
This causes stress on the valley's drainage system, requiring new tunnels and canals to be built.
The Valley Below
The Valley Below is a Canadian dramatic film, released in 2014.
The feature film debut of filmmaker Kyle Thomas, the film consists of four interrelated stories taking place in the badlands around Drumheller, Alberta.
The film was produced by the North Country Cinema media arts collective based out of Calgary, Alberta.
The individual stories centre on Kate( Mikaela Cochrane), a young woman preparing to attend college who discovers that she is pregnant just before leaving on a camping trip with her boyfriend Henry( Joe Perry); Warren( Kris Demeanor), a zamboni driver at the local hockey rink and an aspiring musician who is struggling with alcoholism; Gordon( Stephen Bogaert), a shy and reclusive taxidermist dealing with his failing marriage with Susan( Lori Ravensborg); and Barry( Alejandro Rae), a police officer and part- time local radio host who is looking to start a family with his partner Jill( Alana Hawley).
Each of the four segments features a score by a different Canadian musician.
Rae Spoon, Dan Mangan, Eamon McGrath and Gavin Gardiner composed the music.
The film garnered two Canadian Screen Award nominations at the 3rd Canadian Screen Awards, in the categories of Best Supporting Actor for Demeanor and Best Original Song for Mangan's song" Wants".
The film received largely positive critical attention from the Canadian media, including" The National Post" calling it a" superb first feature".
Movie (disambiguation)
A movie is a type of video (see film).
Movie, Movies, The Movie, or The Movies may also refer to:

Question: Did the movies The Mutations and The Valley Below, originate from the same country?
Answer: no