linkage
inheritance of traits in groups because their genes are near each other (linked) on the same chromosome
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...
Linkage
Linkage is the close association of genes or other DNA sequences on the same chromosome. The closer two genes are to each other on the chromosome, the greater the probability that they will be inherited together.
Genetic Linkage and Genetic Maps
The Background
Gregor Mendel analyzed the pattern of inheritance of seven pairs of contrasting traits in the domestic pea plant.
Genetic linkage maps of each chromosome are made by determining how frequently two markers are passed together from parent to child.
Linkage
The tendency of genes located close together on the same DNA molecule to be coinherited. Typically expressed as percent coinheritance of two genetic markers.
linkage The condition in which the inheritance of a specific chromosome is coupled with that of a given gene. The genes stay together during meiosis and end up in the same gamete.
Linkage and Chromosome Mapping
P 144
T Ch 6, 8
Techniques past and present to locate genes on chromosomes ...
linkage map
A genetic map based on the frequencies of recombination between markers during crossing over of homologous chromosomes. The greater the frequency of recombination between two genetic markers, the farther apart they are assumed to be.
Linkage
In peas, the locus for seed texture (smooth or wrinkled) and seed color (yellow or green) are on two different chromosomes so they assort independently.
Linkage. The frequency of coinheritance of a pair of genes and/or genetic markers, which provides a measure of their physical proximity to one another on a chromosome.
Linkage map. See Genetic linkage map.
Linkage The tendency of genes close together on the same chromosome to be inherited together. It can be quantified and used as a mapping tool.
Linkage
An association in inheritance between characters such that the parental character combinations appear among the progeny more often than the non-parental.
Linkage map
A map of the relative positions of genetic chromosome, determined on the basis of how often the loci are inherited together. Distance is measured in centimorgans (cM).
Related Terms:
Chromosome ...
Linkage
- A measure of the tendency of some genes to be inherited as a group rather than individually because of the proximity of their loci in the chromosome
Lycopene ...
Linkage disequilibrium is a measure of association between alleles of two different genes.
Linkage occurs when genes are on the same chromosome. Remember that sex-linked genes are on the X chromosome, one of the sex chromosomes. Linkage groups are invariably the same number as the pairs of homologous chromosomes an organism possesses.
linkage group Genes linked to the same chromosome that tend to be inherited together.
linkage Tendency of genes located on the same chromosome to be inherited together.
linked gene Gene located on the same chromosome as another gene.
LINKAGE - The tendency of genes to be inherited together as a result of their relatively close proximity on the same chromosome, or location on the same plasmid.
Genetic linkage occurs when the loci of two alleles are linked, or in close proximity to each other on the chromosome. During the formation of gametes, recombination of the genetic material results in reshuffling of the alleles.
The chemical linkage of the sulfur in methionine is a thiol ether. Compare this terminology with that of the oxygen containing ethers. The sulfur of methionine, as with that of cysteine, is prone to oxidation.
phosphodiester linkage - covalent bond that joins the 5' and 3' carbon atoms to form
nucleic acids
peroxisomes - small membrane -bounded organelle that uses molecular oxygen to oxidize organic molecules.
chromosome A linkage structure consisting of a specific linear sequence of genetic information. In TAIR there are 5 nuclear chromosomes (1-5) , the chloroplast chromosome (C) and the mitochondrial chromosome (M).
Gene linkage. The hereditary association of genes located on the same chromosome. Gene modification. The chemical repair of a gene's defective DNA sequence. See DNA. Gene pool.
Deletion mapping -- the use of overlapping deletions to localize the position of an unknown gene on a chromosome or linkage map.
5' or 3' end The nucleoside residues which form nucleic acids are joined by phosphodiester linkages between the 3' C atom of one ribose moiety and the 5' C atom of the next.
Mapping See gene mapping, linkage map, physical map.
Marker An identifiable physical location on a chromosome (e.g., restriction enzyme cutting site, gene) whose inheritance can be monitored.
The organization of the structures and the linkage of their function distinguish to living beings from inert beings more than an upper order or exceptional complexities.
Allelic association: see linkage disequilibrium.
Allelic exclusion: Expression of only one of the two homologous alleles at a locus in the case of heterozygosity.
A key discovery of classical genetics in eukaryotes, was genetic linkage.
Once we had done this we used linkage, which is a family-based method, to look at segments of DNA that are yet to be affected in members of the family. We established linkage to Chromosome 8.
Amylopectin The branched form of starch, containing glucose residues in about one α-1,6 linkage per thirty α-1,4 linkages.
Amylose The unbranched form of starch, containing glucose residues in α-1,4 linkage.
Genetic map See: linkage map
Genetic marker A gene or other identifiable portion of DNA whose inheritance can be followed.
See also: chromosome, DNA, gene, inherit
Genetic material See: genome ...
The chains of nucleotides in a nucleic acid are linked by 3', 5' phosphodiester linkages.
Nucleic acids may be in the form of DNA or RNA molecules containing the genetic information important for all cellular functions and heredity.
You might be looking for linkage between a microsatellite marker and an unknown disease gene. With such information, you can infer the chromosomal location of the unknown gene, and can sometimes identify the gene.
The distance between two linked gene pairs where 1 percent of the products of meiosis are recombinant. A unit of distance in a linkage map. The distance equal to 1% recombination between two loci.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ...
Lactase an enzyme used to digest the -1-4 glycosidic linkage in milk sugar
(lacto = milk; -ase = enzyme ending) ...
A set of closely linked genetic markers present on one chromosome which tend to be inherited together (not easily separable by recombination). Some haplotypes may be in linkage disequilibrium.
because users' definition of "distance" is related to "similarities" or "correlation". There are a large number of variants of hierarchical clustering. The differences are in the way distances are defined and computations (e.g., average-linkage, ...
The downside of the mobile mechanism of the serpins is their vulnerability to aberrant intermolecular b-linkages, resulting in various disorders from cirrhosis to thrombosis.
 See also: DNA, Chromosome, Human, Gene, Organ
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