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Topic: Heterozygote



  
 Hepatology Online
Transplantation of heterozygous livers is a safe and effective clinical practice.
There were no significant differences in patient survival between C282Y heterozygotes and wild-type donors into C282Y heterozygous recipients.
The etiology of iron overload in such conditions remains unclear, although it is likely multifactorial.
http://hemochromatose.tripod.com/aa/sept99.htm   (3665 words)

  
 Evidence for a Heterozygote Advantage in Congenital Adrenal Hyperplasia due to 21-Hydroxylase Deficiency -- Witchel et ...
cortisol response that we observed in heterozygotic carriers was
genotype analysis, 28 heterozygotic carriers and 22 genotyped
The graph depicts the cortisol responses (mean ±
http://jcem.endojournals.org/cgi/content/full/82/7/2097   (2931 words)

  
 [No title]
The allele, or the corresponding phenotypic trait, expressed in the heterozygote is said to be dominant.
dominance Condition in which a heterozygote expresses a trait in the same manner as the homozygote for one of the alleles.
partial dominance A condition in which the phenotype of the heterozygote is intermediate between the corresponding homozygotes but more closely resembles one than the other.
http://www.rpi.edu/locker/53/001053/yesterday/KEY2.DAT   (809 words)

  
 Deletion of the NOT4 gene impairs hyphal development and pathogenicity in Candida albicans -- Krueger et al. 150 (1): ...
of experiments, while the heterozygote and reconstructed heterozygote
http://mic.sgmjournals.org/cgi/content/abstract/150/1/229   (206 words)

  
 DJO Digital Journal of Ophthalmology
On an examination at age 50, she had 20/40 visual acuity and central islands of vision only; at age 73, visual acuities had decreased to light perception and visual fields were not measurable.
The age of our patients could not be the reason.
The two normal ocular examinations separated by 23 years in patient II-1 emphasizes that the natural history of this individual's condition is not that of a severe progressive retinal degeneration.
http://www.djo.harvard.edu/site.php?url=/physicians/oa/368   (2533 words)

  
 Modelling the effects of memetic taboos on genetic homosexuality
Under such conditions, an equilibrium level is achieved at:
Let these conditions apply for 150 generations, after which the taboo decreases to b = 0.5 (again by manipulating the variable a in Laland's equation (3) above to suit our purposes)
Werner D (1979) A cross-cultural perspective on theory and research on male homosexuality.
http://jom-emit.cfpm.org/2001/vol4/gatherer_d.html   (5123 words)

  
 Heterozygote - Wikipedia, the free encyclopedia
Heterozygosity can also refer to the fraction of loci within an individual that are heterozygous.
If the test is sensitive enough, the heterozygote has the phenotype of both parents: when a person who is homozygous for the A blood type gene marries a person who is homozygous for the B blood type gene, they produce heterozygous children who express both A and B antibodies (see, co-dominance).
When an organism is referred to as a heterozygote or as being heterozygous for a specific gene, it means that the organism carries a different version of that gene on each of the two corresponding chromosomes.
http://en.wikipedia.org/wiki/Heterozygote   (434 words)

  
 Lecture Summary January 8
Multiple loci can be analyzed by the same reasoning as single loci if you are willing to make some assumptions about how they interact.
X-linked traits can be analyzed like autosomal ones.
The effects of heterozygote advantage and disadvantage are weakened because there are fewer heterozygotes.
http://depts.washington.edu/genetics/courses/genet453/2001/summaries/summary-jan10.html   (715 words)

  
 Hypoxia-induced acute lung injury in murine models of sickle cell disease -- Pritchard et al. 286 (4): 705 -- AJP - ...
Under normoxic conditions the amount of HSP90 associated with
However, acute periods of hypoxia markedly increased lung
association of HSP90 with eNOS in lungs of SCD and heterozygote
http://ajplung.physiology.org/cgi/content/full/286/4/L705   (6590 words)

  
 Heterozygote Advantage Summary - Heterozygote Advantage Information
Inbreeding is the practice of repeatedly crossing a single variety of organism with itself, in order to develop a more uniform variety.
In this hypothesis, heterozygotes are superior to the homozygous recessive condition, but not the homozygous dominant condition.
The other explanation for heterosis is that the heterozygote is superior to both homozygotes.
http://www.bookrags.com/sciences/genetics/heterozygote-advantage-gen-02.html   (1189 words)

  
 Dominance
If two alleles have a codominance relationships, in the heterozygote both alleles will be completely expressed.
But the heterozygote will produce pink flowers--as if the two homozygous conditions were blended together like paint.
The heterozygote has blood type AB, and this person's cells have both A antigens and B antigens on their surfaces.
http://www.cod.edu/people/faculty/fancher/Dominance.htm   (1043 words)

  
 heterozygote
The existence of familial and isolated cases with very late onset age, over 50 years, has been described in heterozygote patients in Portugal [15-17] and Japan...
Sequence analysis of CYP11B2, the gene encoding aldosterone synthase (P450c11AS), revealed that the patient was a compound heterozygote carrying a previously...
heterozygote An individual with non-identical alleles for a particular gene or genes.
http://www.mongabay.com/igapo/biotech/heterozygote.html   (158 words)

  
 PhD position: Evolution of major histocompatibility complex (MHC) polymorphisms
Having a system where an extensive MHC polymorphism evolves naturally, we had the opportunity to study the degree of polymorphism that evolves by heterozygote advantage and by co-evolution.
The quantitative effect of autoimmunity on MHC polymorphism has never been studied before.
This can be generalized by a simple analytic model.
http://www-binf.bio.uu.nl/rdb/PhD   (2702 words)

  
 Abstract
The FV Leiden was detected in 13/85 patients (15.3%) with IS (2 homozygotes and 11 heterozygotes).
PT G20210A mutation was found in three (2 heterozygotes, 1 homozygote) from 85 IS patients (3.5%).
C677T mutation of MTHFR gene was found in 58 between 85 of patients (52 heterozygotes and 6 homozygotes) with IS stroke (68%).
http://www.blackwellpublishing.com/isth2003/abstract.asp?id=9170   (339 words)

  
 HONmeeting - Health Conferences & Event- Heterozygote
The keywords used on this page are the Medical Subject Headings developed by the National Library of Medicine®, USA © MeSH 2001
Other Web resources (definition, articles, images, Web pages,...) for Heterozygote with HONselect.
Want more events about Heterozygote in your mailbox?
http://www.hon.ch/Conf/Theme/G05.441.383.html   (80 words)

  
 Final Diagnosis -- Case 250
The patient is likely a DOUBLE HETEROZYGOTE FOR HEMOGLOBIN E AND BETA THALASSEMIA.
Patients with combined Hb E/beta thalassemia (double heterozygotes) present with the most clinically severe Hb E syndromes, with clinical pictures indistinguishable from that of thalassemia intermedia or major.
Hemoglobin electrophoresis demonstrates 98% Hb E, with 2% Hb F and no Hb A. The bone marrow frequently shows mild erythroid hyperplasia.
http://path.upmc.edu/cases/case250/dx.html   (544 words)

  
 Heterozygote definition - Medical Dictionary definitions of popular medical terms
She is a carrier for CF but has no signs or symptoms of the disease.
For example, a woman who is a heterozygote for cystic fibrosis (CF) carries the CF gene on one of her chromosomes number 7 and the normal paired (non-CF) gene at the same position on her other chromosome 7.
A manifesting heterozygote is a person who manifests signs or symptoms of what is usually a recessive condition and ordinarily only is evident in someone who has two copies of the gene.
http://www.medterms.com/script/main/art.asp?articlekey=3747   (236 words)

  
 Heterozygote advantage - Wikipedia, the free encyclopedia
Heterozygote advantage seems a likely explanation for this allele, which conveys no benefit at all to the homozygous recessive individual.
This selection favoring the heterozygote is one of the mechanisms that maintain polymorphism and help to explain some kinds of genetic variability.
Even today, approximately one in twenty-five people of European descent is a carrier for the disease, and one in every 2500 children born is affected by cystic fibrosis.
http://en.wikipedia.org/wiki/Overdominance   (1385 words)

  
 Evolution - A-Z - Heterozygote / homozygote
A heterozygote is an individual having two different alleles at a genetic locus; a homozygote is an individual having two copies of the same allele at a locus.
http://www.blackwellpublishing.com/ridley/a-z/Heterozygote___homozygote.asp   (70 words)

  
 Hyperabsorption and retention of campestanol in a sitosterolemic homozygote: comparison with her mother and three ...
heterozygote, and 5.5 ± 4.3% as the mean for three control
heterozygote and removal was as rapid as in control subjects.
in the heterozygote, and 0.05 ± 0.03 mg/dl for the control
http://www.jlr.org/cgi/content/abstract/41/11/1883   (411 words)

  
 MCDB 2150 -- Lecture 38
In addition, other factors, such as heterozygote advantage, may increase the fraction of the alleles retained in the population, even under conditions where the basis for the advantage is not fully understood.
For example, in situations where a heterozygote has a reduced fertility because of a pericentric inversion, the two homozygotes may be favored.
The heterozygotes do not exhibit the recessive sickle cell disease, but are resistant to malaria, and thus form the healthy population that is responsible for most of the reproduction.
http://www.colorado.edu/MCDB/MCDB2150Fall/notes99/99L38.html   (2515 words)

  
 [A case of symptomatic adrenoleukodystrophy heterozygote manifested by spastic paraparesis of late onset]
The abnormality of MRI suspected that spastic paraparesis may result from involvement of the corticospinal tract of the cerebrum or brainstem though the symptom has been considered due to the lesion of the spinal cord.
The state of the art may have changed since the publication date.
The patient's 9 year-old grandson had ALD, and her 34 year-old daughter, who was the mother of the case of ALD, was asymptomatic but accompanied by elevation of serum very long chain fatty acid (VLCFA).
http://www.aegis.com/aidsline/1990/feb/M9020279.html   (462 words)

  
 Regarding the Genetics of Phaseolus vulagaris. XVI. Further Conrtibutions Regarding the Heredity of Partial Color
Only 2 individuals were classified as homozygote arcus, and 33 as heterozygote.
The remaining individuals, about 60, were in the bipunctata group.
It is fairly difficult to determine a clear boundary between the different heterozygote types, and this could probably only be carried out accurately given a segregation in only one of the genes involved.
http://beangenes.cws.ndsu.nodak.edu/papers/lamp1940.htm   (3396 words)

  
 Hyperekplexia associated with compound heterozygote mutations in the {beta}-subunit of the human inhibitory glycine ...
The patient subsequently identified as a compound heterozygote
Hyperekplexia associated with compound heterozygote mutations in the {beta}-subunit of the human inhibitory glycine receptor (GLRB) -- Rees et al.
Hyperekplexia associated with compound heterozygote mutations in the ß-subunit of the human inhibitory glycine receptor (GLRB)
http://hmg.oxfordjournals.org/cgi/content/full/11/7/853   (5169 words)

  
 Thermodynamic Determination of Plasma and Leukocyte beta-Hexosaminidase Isoenzymes in Homozygote and Heterozygote ...
This thermodynamic variable was used for the study of Hex enzyme heterogeneity in 3 patients with the GM gangliosidosis B1 variant and 6 heterozygote carriers.
The determination of the Hex isoenzymes in plasma presented a high discrimination power for B1 variant patients but not for heterozygote carriers, in whom false-negative results may be obtained.
However, thermodynamic evaluation of the isoenzyme composition of Hex in leukocyte lysates permits the biochemical identification of patients with the GM gangliosidosis B1 variant and of heterozygote carriers.
http://www.ajcp.com/previews/abstracts/202336.html   (309 words)

  
 DNA-Diagnosis - Encyclopedia
Furthermore, we work with two different analytical systems and accept only exclusions which occur in both systems.
Each person owns two alleles on one polymorphic genetic site, which can be identical (homozygot) or different (heterozygot).
With less than three exclusion constellations, a biostatistical acknowledgement including possible mutations or dumb alleles must follow." DNA-Diagnosis works with at least three exclusions, whereby one has to take the form of a heterozygote father and one of a heterozygote child.
http://en.dna-diagnosis.com/encyclopedia/encyclopedia.html   (1189 words)

  
 MCDB 2150 -- Lecture 21
However, in many systems, recessive alleles occur primarily as loss of function mutations derived from "wild type" strains by treatment with radiation or other mutagens.
If one allele is completely dominant over the other, the phenotype of the heterozygote will be the same as the dominant homozygous phenotype, with the alternative phenotype occurring only in individuals who are homozygous for the recessive allele.
In classical genetics, this was further complicated by lack of knowledge about anything other than the phenotypes associated with the dominant and recessive traits.
http://www.colorado.edu/MCDB/MCDB2150Fall/notes99/99L21.html   (2800 words)

  
 Heterozygote - definition of Heterozygote in Encyclopedia
When a human is referred to as a heterozygote, or being heterozygous for a specific gene, it means that he or she carries two different versions of that gene on the two corresponding chromosomes.
Heterozygote cells are diploid or polyploid and have different alleles at a locus (position) on homologous chromosomes.
Some traits are neither dominant nor recessive but are intermediary: the red carnation crossed with a white carnation will give you heterozygote pink carnations.
http://encyclopedia.laborlawtalk.com/Heterozygote   (310 words)

  
 Profound Dihydropyrimidine Dehydrogenase Deficiency Resulting from a Novel Compound Heterozygote Genotype -- Johnson et ...
In the present study, we describe the genotypic characterization
A schematic map of the human DPD gene (with exons 1 to 23 represented by solid numbered boxes) is shown with the locations of the mutations characterized in this study.
analysis of the father revealed that he was heterozygote for
http://clincancerres.aacrjournals.org/cgi/content/full/8/3/768   (3785 words)

  
 Untitled Document
phenotypes of both alleles are present in heterozygote 2.
heterozygote has phenotype more extreme than either homozygote 2.
heterozygote phenotype is dependent upon sex chromosomes b.
http://www.und.nodak.edu/instruct/agerber/c4-00.html   (258 words)

  
 Passive smoking and lung function in {alpha}1-antitrypsin heterozygote schoolchildren -- Corbo et al. 58 (3): 237 -- ...
Lung function did not differ between homozygotes and heterozygotes.
Passive smoking and lung function in {alpha}1-antitrypsin heterozygote schoolchildren -- Corbo et al.
Chronic obstructive pulmonary disease in {alpha}1-antitrypsin PI MZ heterozygotes: a meta-analysis
http://thorax.bmjjournals.com/cgi/content/abstract/58/3/237   (350 words)

  
 Pregap4 - Pregap4-Modules-Heterozygote Scanner
Some experimentation may be required to optimise these for your own data.
This parameter forms a mask such that any double peak whose amplitude ratio is less than this value is rejected by the heterozygote scanner.
The centres of each individual half-peak of a double peak must align reasonably well for them to be considered to be real heterozygotes.
http://www.visualgenomics.ca/~birch/birchhomedir/local/doc/staden/manual/pregap4_unix_38.html   (463 words)

  
 Genetics Glossary GH
A specialized haploid cell that fuses with a gamete from the opposite sex or mating type to form a diploid zygote; in mammals, an egg or a sperm.
A measure of the genetic variation in a population; with respect to one locus, stated as the frequency of heterozygotes for that locus.
A gene pair having different alleles in the two chromosome sets of the diploid individual for example, Aa or, A1A2.
http://helios.bto.ed.ac.uk/bto/glossary/gh.htm   (3201 words)

  
 what is the level of gene expression in a homozygote and heterozygote?
Subject: what is the level of gene expression in a homozygote and heterozygote?
what is the level of gene expression in a homozygote and heterozygote?
Re: what is the level of gene expression in a homozygote and heterozygote?
http://www.madsci.org/posts/archives/1998-10/904867873.Ge.q.html   (103 words)

  
 Early Effect of Inbreeding as Revealed by Microsatellite Analyses on Ostrea edulis Larvae -- Bierne et al. 148 (4): ...
), may be ruled out as a causative explanation of early heterozygote
stage, the heterozygote deficiency and the apparent heterozygotes
of arguments have been invoked to explain heterozygote deficiencies
http://www.genetics.org/cgi/content/full/148/4/1893   (6221 words)

  
 Human Leukocyte Antigen Class I Alleles and Cervical Neoplasia: No Heterozygote Advantage -- Wang et al. 11 (4): 419 -- ...
Articles by Wang, S. Articles by Carrington, M. Cancer Research
I heterozygote advantage has not yet been explored for HPV and
In essence, we assessed whether those who did
http://cebp.aacrjournals.org/cgi/content/full/11/4/419   (1163 words)

  
 Search for the pathogenesis of the differing phenotype in two compound heterozygote Hungarian brothers with the same ...
The main difference found was that the level of molecular
A Hungarian family with triosephosphate isomerase (TPI) deficiency has been previously reported with two compound heterozygote
In the search to find an explanation for the differing clinical phenotypes between the two genetically identical compound
http://www.pnas.org/cgi/content/full/94/19/10362   (3141 words)

  
 Interrelationships of Heterozygosity, Growth Rate and Heterozygote Deficiencies in the Coot Clam, Mulinia lateralis -- ...
(1) significant heterozygote deficiencies at 13 of 15 loci, (2) a
correlation between the magnitude of heterozygote deficiency at a locus and
Interrelationships of Heterozygosity, Growth Rate and Heterozygote Deficiencies in the Coot Clam, Mulinia lateralis -- Gaffney et al.
http://www.genetics.org/cgi/content/abstract/124/3/687   (312 words)

  
 CEQ™ 8800 Automated Heterozygote Detection
From automated heterozygote detection, trimming and sequencing alignment to a new generation of quality values, the CEQ makes analysis fast and easy.
And our software enables the delivery of more accurate sequences, allowing researchers to set and monitor quality standards for the final sequence.
The system provides DNA sequence data analysis functions that automatically identify and trim off vector material, foreign sequences and poor quality bases.
http://www.beckman.com/products/specifications/geneticanalysis/ceq/ceq8800_heterozygote_app_stat.asp?pf=1   (113 words)

  
 How to construct a heterozygote plasmid - BioForum
I need to make a stretch of DNA from a promoter of a gene in such a way that one of the strands should be mutant, resulting in a heterozygote state for a SNP, then I will put this fragment in front of the luciferase gene.
How to construct a heterozygote plasmid - BioForum
What is it you would like to do?
http://www.protocol-online.org/forums/index.php?showtopic=4358   (175 words)

  
 heterozygote - definition of heterozygote by the Free Online Dictionary, Thesaurus and Encyclopedia.
This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.
An organism that has different alleles at a particular gene locus on homologous chromosomes.
heterozygote - definition of heterozygote by the Free Online Dictionary, Thesaurus and Encyclopedia.
http://www.thefreedictionary.com/heterozygote   (79 words)

  
 Heterozygote Detection
The values were determined by measurements on PMN leukocytes from obligate heterozygotes and presumed random normals.
Individuals at risk for carrier status must come to the San Diego laboratory for testing.
http://medicine.ucsd.edu/cystinosis/hetero.html   (146 words)

  
 BIO 304. Ecology & Evolution: Population Genetics
Maintenance of high frequencies of harmful or deleterious alleles is usually due to balancing selection through heterozygote advantage (i.e.
Selection for small or large body size in the guppies (Poecilia reticulata) in Trinidad.
http://www.micro.utexas.edu/courses/levin/bio304/popgen/nat.selection.html   (380 words)

  
 FindArticles search for "Heterozygote"
Studying subjects heterozygous for mutations of the cystic fibrosis (CF) gene may help clarify the impact on disease onset of CF transmembrane conductance...
FindArticles > All Publications > Results for "Heterozygote"
Find Heterozygote at one of the best sites the Internet has to offer!
http://www.findarticles.com/p/search?tb=art&qt=Heterozygote   (822 words)

  
 Curious Minds - Articles - Biology & Life - Evolution
Overdominance or heterozygote advantage, where the heterozygote is more fit than either of the homozygous forms (famously exemplified by human sickle cell anemia conferring resistance to malaria)
Balancing selection maintains variation within a population through a number of mechanisms, including:
http://www.curiousminds.co.uk/Evolution   (3689 words)

  
 [No title]
Hb Iraq-Halabja beta10(A7)Ala->Val CONTACT External HEMATOLOGY No data for the simple heterozygote ELECTROPHORESIS No separation CHROMATOGRAPHY No separation STRUCTURE STUDIES Not reported DNA ANALYSES A GCC->GTC mutation at codon 10 FUNCTION STUDIES Not reported STABILITY Not reported OCCURRENCE Found in members of an Iraqi family OTHER INFORMATION Occurred together with beta-thal (IVS-II-1, C->T) REFERENCES 1.
http://globin.cse.psu.edu/dist/cathy/srs/hbvars.dat   (4892 words)

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