locus
the specific point on a chromosome where the gene is found
Source: Jenkins, John B. 1990. Human Genetics, 2nd Edition. New York: Harper & Row ...
Locus (genetics)
From Wikipedia, the free encyclopedia
Jump to: navigation, search ...
Locust
1. (Science: zoology) Any one of numerous species of long-winged, migratory, orthopterous insects, of the family Acrididae, allied to the grasshoppers; especially, (Edipoda, or Pachytylus, migratoria, and Acridium perigrinum, ...
Locus
A locus is the specific physical location of a gene or other DNA sequence on a chromosome, like a genetic street address. The plural of locus is "loci".
Narration Transcription ...
Locus: 11p15.5 - The HBB gene is found in region 15.5 on the short (p) arm of human chromosome 11.
Gene Structure: The normal allelic variant for this gene is 1600 base pairs (bp) long and contains three exons.
Locus (loci)
The position on a chromosome where a particular genetic trait resides. Sometimes used to describe multiple genes that affect the same function.
locus pl. loci
(loh-kus) [L. place]
A particular place along the length of a certain chromosome where a given gene is located.
logistic population growth ...
Locus Literally, a place. A point on a chromosome or in a genome at which a specific gene or other marker is found. Often taken (wrongly) to mean gene.
Locus heterogeneity see genetic heterogeneity ...
Locus (plural = loci). A specific location or site on a chromosome.
Log phase. See Logarithmic phase.
Locus: See Genetic locus.
Logistic population growth: Population growth that is modulated by the population size relative to carrying capacity.
locus (pl. loci)
a particular place along the length of a certain chromosome where a given gene is located.
log (logarithmic) phase
The exponential phase of growth in a bacterial culture.
locus A section of a chromosome (a gene) that codes for a particular protein.
logistic equation. A mathematical expression describing an idealized sigmoid curve of population growth.
A locus including a tandemly repeated sequence may exhibit moderate to high levels of intraspecific variation in the alleles available for that locus. Such loci are thought to have alleles that differ in the number of repeats of the 'core' sequence.
A locus representing a single RAPD fragment which has been sequenced. Primers specific to the locus can be designed and used in PCR amplification.
Related Terms:
Locus ...
A locus (plural: loci) is the location of a gene on a chromosome. The gene for red flowers and the gene for white flowers are two different alleles at the same locus.
This locus was chosen because fibroblasts secrete large amounts of collagen and thus one would expect the gene to be easily accessible in the chromatin.
A genetic locus that is analyzed in many forensic and paternity testing laboratories is the human leukocyte antigen locus known as HLA-DQ alpha. There are four major alleles at this locus known as 1, 2, 3, and 4.
sequenced locus Sequenced loci include predicted and experimentally verified transcribed regions.
Quantitive Trait Locus
- Quantative trait locus (QTL) is a region of DNA that is associated with a particular measurable trait (e.g., plant height).
One of two or more alternate forms (alleles) of a chromosomal locus that differ in nucleotide sequence or have variable numbers of repeated nucleotide units. (See Allele.) DNA polymerase. See Polymerase. DNA sequencing.
One centimorgan is equal to a 1% chance that a marker at one genetic locus will be separated from a marker at a second locus due to crossing over in a single generation.
Gene: the segment of DNA at a particular locus on a particular chromosome that controls production of proteins and enzymes and influences the development of a specific trait.
A widely used but not a statistically powerful test in population genetics to estimate the selection acting on a locus.
In the superior part of the rhomboid fossa it corresponds with the lateral limit of the fossa and presents a bluish-gray area, the locus cæruleus, which owes its color to an underlying patch of deeply pigmented nerve cells, ...
Directional selection depletes genetic variation at the selected locus as the fitter allele sweeps to fixation. Sequences linked to the selected allele also increase in frequency due to hitchhiking.
X-inactivation requires a locus on the X, called the X-inactivation center. At this locus, inactivation occurs in response to a developmental cue, which is present only at specific stages of embryo development.
Locust swarms can eat entire wheat fields or fruit flies lay eggs in our fruit. It's a constant battle to find a natural way to control insects and still allow them to survive.
4 % of all observed variations in the sequence of the major histocompatibility locus (MHC) between humans and chimpanzees. After taking multiple indels into consideration, the high degree of genomic similarity between the two species (98.
If it is a disorder involving a single gene, include mention of any clinical variability; the mode(s) of inheritance; any genetic heterogeneity (locus and/or allelic); what is known about the gene(s) involved including the chromosomal locus/loci; ...
A test that determines whether a locus is on a specific human chromosome by observation of the concordance of the locus and the specific chromosome in a panel of human-mouse hybrid cell lines containing only one or a few of the normal set (22 ...
See also variable-number-of-tandem-repeats (VNTR) locus.
This site is dependent on visitors like you. If you think you can add more to this definition or see a correction that needs to be made, click on the EDIT button below and fix it.
Genetic marker: A known site on the chromosome. It might for example be the site of a locus with some recognizable phenotype, or it may be the site of a polymorphism that can be experimentally discerned. See 'Microsatellite', 'SNP', 'Genotyping'.
...
ALLELE - One of several alternate forms of a gene occupying a given locus on a chromosome or plasmid.
plague - a catastrophic epidemic caused by a biotic agent; black death of the Middle Ages, yellow fever, locusts, etc.
plant - belonging to the plant or vegetable kingdom or to set plants or sow seeds (Glossary of PM) ...
FMF familial Mediterranean fever
FRAXA fragile X locus
FSHD facioscapulohumeral muscular dystrophy
FTICR fourier transform ioncyclotron resonance
FVEA Fundacion Valenciana de Estudios Avanzados ...
or chemicals), Morgan and his coworkers were able to cause new alleles to form by subjecting fruit flies to mutagens (agents of mutation, or mutation generators). Genes are located on specific regions of a certain chromosome, termed the gene locus ...
 See also: Chromosome, Gene, DNA, Sequence, Organ
|
