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*  Recombination hotspot
Additional crossing over mapping located the Dsbc1 locus to the 12.2 to 16.7-Mb region of mouse chromosome 17, which contains ... Evolution Genetic recombination Jeffreys AJ, Kauppi L, Neumann R (October 2001). "Intensely punctate meiotic recombination in ... Meiotic recombination through crossing over is thought to be a mechanism by which a cell promotes correct segregation of ... Crossing over requires a DNA double-stranded break followed by strand invasion of the homolog and subsequent repair. Initiation ...
*  Concerted evolution
In sexual reproducing organisms unequal crossing over during meiosis may be responsible for amplification due to misalignment ... 2. Redistribution of genes requires transposition, probably assisted by the same repetitive genetic elements as in 1). 3. ... or in similar high copy number repetitive genetic elements (ERV, LINE, SINE, etc.). This increases the copy number of the gene ...
*  Genetic recombination
It is the frequency of crossing over between two linked gene loci (markers), and depends on the mutual distance of the genetic ... In eukaryotes, genetic recombination during meiosis can lead to a novel set of genetic information that can be passed on from ... ISBN 978-0-8153-3218-3. "Access Excellence". Crossing-over: Genetic Recombination. The National Health Museum Resource Center. ... The shuffling of genes brought about by genetic recombination produces increased genetic variation. It also allows sexually ...
*  Homologous chromosome
Genetic crossing-over, a type of recombintion, occurs during the pachytene stage of prophase I. In addition, another type of ... Genetic variation among organisms helps make a population more stable by providing a wider range of genetic traits for natural ... SDSA recombination does not cause crossing-over. In the process of crossing-over, genes are exchanged by the breaking and union ... genetic recombination (by random segregation) and crossing over produces daughter cells that each contain different ...
*  Homologous recombination
Lobo I, Shaw K (2008). "Thomas Hunt Morgan, genetic recombination, and gene mapping". Nature Education. 1 (1). Coe E, Kass LB ( ... Within the same year as McClintock's discovery, Curt Stern showed that crossing over-later called "recombination"-could also ... These new combinations of DNA represent genetic variation in offspring, which in turn enables populations to adapt during the ... The SSA pathway is considered mutagenic since it results in such deletions of genetic material. During DNA replication, double- ...
*  Norman Borlaug
... the crossing of genetic barriers; the inability of crops to fulfill all nutritional requirements; the decreased biodiversity ... Backcrossing involves crossing a hybrid and subsequent generations with a recurrent parent. As a result, the genotype of the ... In that time, his group made 6,000 individual crossings of wheat. Initially, Borlaug's work had been concentrated in the ... Food for Thought Norman Borlaug: genetic modification can feed the world, Chron.com, July 13, 2008 Borlaug, N.E. (2000), " ...
*  Drosophila melanogaster
... facilitating genetic crossing. The mature larvae has giant chromosomes in the salivary glands called polytene chromosomes-" ... This benefit of genetic diversity is an evolutionary advantage because it increases the chance that some of the offspring will ... Genetic markers are commonly used in Drosophila research, for example within balancer chromosomes or P-element inserts, and ... D. melanogaster was among the first organisms used for genetic analysis, and today it is one of the most widely used and ...
*  Wine
... created by the genetic crossing of two species. V. labrusca (of which the Concord grape is a cultivar), V. aestivalis, V. ... Both archaeological and genetic evidence suggest that the earliest production of wine elsewhere was relatively later, likely ...
*  C. D. Darlington
He began to make significant contributions to the understanding of the relationship of genetic crossing-over and the ... He developed a keen interest in the Botanic Garden, going on to establish the 'Genetic Garden'. He was also involved in ... Darlington developed a strong interest in the application of genetic insights to the understanding of human history. He ... in which a genetic approach to understanding the behaviour of man was strongly defended. He staunchly defended his colleague in ...
*  Claude Cormier
... where his goal was to develop a new flower through genetic crossing. With bachelor's degree in hand, he realized that he was ... This "weaving" results from the conjugation, or crossing, of diverse conceptual, material, and historic elements. As a result, ...
*  Triatoma brasiliensis
Costa, J; Almeida, CE; Dujardin, JP; Beard, CB (2003b). "Crossing experiments detect genetic incompatibility among populations ...
*  Chromosomal crossover
The linked frequency of crossing over between two gene loci (markers) is the crossing-over value . For fixed set of genetic and ... Chromosomal crossover (or crossing over) is the exchange of genetic material between homologous chromosomes that results in ... 1999). "Modern Genetic Analysis: Mitotic Crossing-Over". New York: W. H. Freeman. Creighton H, McClintock B (1931). "A ... Unequal crossing over Coefficient of coincidence Genetic distance Independent assortment Mitotic crossover Recombinant ...
*  Polymorphism (biology)
Evolution of genetic systems, 2nd ed, p120 et seq: The genetic promotion of crossing. Oliver & Boyd, London. Darwin, Charles. ... Since all polymorphism has a genetic basis, genetic polymorphism has a particular meaning: Genetic polymorphism is the ... In genetic polymorphism, the genetic make-up determines the morph. Ants exhibit both types in a single population. Polymorphism ... Genetic polymorphism of serum transferrins in reindeer is used in population and genetic studies. Gene concentrations of ...
*  Balancer chromosome
... s can be used as a genetic tool to prevent crossing over (genetic recombination) between homologous ... they also realized that they could limit crossing over in these populations as well give them a very consistent genetic ... Additionally, the genetic marker or markers of the balancer are listed after the name and separated by a comma. Generally ... If crossing over between a balancer chromosome and the balancer's homolog does occur during meiosis each chromatid ends up ...
*  Banksia oblongifolia
Genetic analysis showed generations of crossing and complex ancestry. Morphology generally correlated with genetic profile, but ... occasionally plants that resembled one parent had some degree of genetic hybridisation. Furthermore, there were a few plants ...
*  Crossbill
While the direction of crossing seems to be the result of at least 3 genetic factors working together in a case of epistasis ... Edelaar, Pim; Postma, Erik; Knops, Peter; Phillips, Ron (2005). "No support of a genetic basis of mandible crossing direction ... The mechanism by which the bill-crossing (which usually, but not always, occurs in a 1:1 frequency of left-crossing or right- ... Genetic research on their DNA failed to reveal any difference between any of the crossbills (including the morphologically ...
*  March 1965
... the crossing of genetic material of cells from two different species (in this case, a rat and a mouse). Over a month's time, ... the genetic code encoded by DNA to bring together the correct sequence of amino acids in cellular proteins. Holley would be ...
*  Mendelian inheritance
Along with crossing over, independent assortment increases genetic diversity by producing novel genetic combinations. There are ... This contributes to the genetic variability of progeny. Mendel's Law of Dominance states that recessive alleles will always be ... However, Mendel's laws stop short of explaining some patterns of genetic inheritance. For most sexually reproducing organisms, ... many violations of independent assortment due to genetic linkage. Of the 46 chromosomes in a normal diploid human cell, half ...
*  Non-allelic homologous recombination
During meiosis or mitosis, LCRs can misalign and subsequent crossing-over can result in genetic rearrangement. When non-allelic ... This can give rise to rare genetic disorders, caused by the loss or increased copy number of genes within the deleted or ... Genetic recombination Non-homologous end joining Hurles, Matthew; et al. (2006), "Recombination Hotspots in Nonallelic ... 341-355 Beckmann JS, Estivill X, Antonarakis SE (August 2007). "Copy number variants and genetic traits: closer to the ...
*  Barbara McClintock
One of those ideas was the notion of genetic recombination by crossing-over during meiosis-a mechanism by which chromosomes ... as other scientists confirmed the mechanisms of genetic change and genetic regulation that she had demonstrated in her maize ... She remained a regular presence in the Cold Spring Harbor community, and gave talks on mobile genetic elements and the history ... She produced the first genetic map for maize, linking regions of the chromosome to physical traits. She demonstrated the role ...
*  Dihybrid cross
... "crossing" their genetic information. The Dihybrid cross is easy to visualize using a Punnett square of dimensions 4 x 4. The ... which occurs by crossing the members of the first filial generation, shows a phenotypic (appearance) ratio of 9:3:3:1, where: ...
*  Genetic algorithm
Diversity is important in genetic algorithms (and genetic programming) because crossing over a homogeneous population does not ... These less fit solutions ensure genetic diversity within the genetic pool of the parents and therefore ensure the genetic ... Genetic algorithms are often applied as an approach to solve global optimization problems. As a general rule of thumb genetic ... A typical genetic algorithm requires: a genetic representation of the solution domain, a fitness function to evaluate the ...
*  Prophase
... genetic exchange between the non-sister chromatids of the synaptonemal complex in an event known as crossing-over or genetic ... Prophase I the most complex phase in all of meiosis because homologous chromosomes must pair and exchange genetic information. ... In the fourth phase of prophase I, diplotene (from the Greek for "twofold"), crossing-over is completed. Homologous chromosomes ... To ensure pairing of homologous chromosomes and recombination of genetic material occurs properly, there are cellular ...
*  Waxy corn
... probably due to years of crossing into various genetic stocks. Only the unique endosperm had been retained. At this time, waxy ... Genetic research of this genetic drift started first with describing (phenotyping) the mutant kernel appearance of maize and ... But the fact that waxy endosperm came to their attention in the first place is probably due to genetic drift. The gene for waxy ... Nelson made a fine structure genetic map of most of these mutations For waxy maize, a single recessive gene (wx) was located on ...
*  Chiasma (genetics)
The chiasmata become visible during the diplotene stage of prophase I of meiosis, but the actual "crossing-overs" of genetic ... The phenomenon of genetic chiasmata (chiasmatypie) was discovered and described in 1909 by Frans Alfons Janssens, a Professor ... At a given chiasma, an exchange of genetic material can occur between both chromatids, what is called a chromosomal crossover, ... Sister chromatids also form chiasmata between each other (also known as a chi structure), but because their genetic material is ...
*  Kristine Kochanski
Lister also realises that the in-vitro tube with Kochanski and Lister's genetic information is Lister himself, creating a ... In "Ouroboros" (1997), Kochanski (now played by Chloƫ Annett) is seen crossing through a linkway originating from a parallel ...
*  Synapsis
The crossover of genetic material also provides a possible defence against 'chromosome killer' mechanisms, by removing the ... SDSA recombination does not cause crossing-over. Both the non-crossover and crossover types of recombination function as ... A further consequence of recombinant synapsis is to increase genetic variability within the offspring. Repeated recombination ... "crossing-over". This exchange produces a chiasma, a region that is shaped like an X, where the two chromosomes are physically ...