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Phenotype in Biological Dictionary

Transformed phenotype

... We have investigated whether the transformed phenotype is due to Rho activation. ... Other effects of Ras transformation must contribute to the phenotype . ... ... alter the phenotype of 3T3 cells transformed by an ... autocrine ...

Phenotype

... A phenotype is any observable characteristic or trait of ... expression of an organism's genes ... phenotype ( ) n. The observable physical or biochemical ... by both genetic makeup and environmental phenotype what an organism looks like as a consequence of ...

Genotype

... or ... the relation between genotype and phenotype is illustrated, ... Genotype and phenotype An individual's genotype is the composition, in ... belongs as ... 2. Partial Genotype and Partial phenotype ... 3. Mapping Genotype ...

True-breeding

... true " means that two organisms with a particular, heritable phenotype produce only offspring with ... (Redirected from Breeding ... alternate alleles are identical, ... The recessive trait's phenotype only appears in true - breeding (homozygous) individuals ... That is ...

Reciprocal cross

... of Reciprocal at Dictionary.com a free online dictionary ... or phenotype as the complementary female or male parent in the other cross . ... ... reciprocal adj. Concerning each of two or more persons or things. ... or phenotype as the complementary female or male parent in the other cross . ... ...

Recessive gene

... the effects of the different versions of a particular gene on the phenotype of an organism. Many animals and plants have two copies of each gene ... of ... The only way the recessive version of a gene shows as your phenotype (in this ... In genetics, the term " recessive gene " refers to an ...

Maternal effect

... A maternal effect is a situation where the phenotype of an organism is determined not only by the environment it experiences and its genotype, but also by the environment and phenotype of its mother. In genetics, maternal ... I think that maternal ...

Heterozygous

... ... situation in which a heterozygous genotype results in a phenotype ... heterozygous adj. Having different alleles at one or more ... ) ... The result is a heterozygous organism with a combination phenotype (Miller, p 273) ... ...

Expressivity

... Expressivity is a term used in genetics that refers to variations of a phenotype in individuals carrying a particular genotype. The term can be used to qualitatively or quantitatively characterize the extent of the phenotype variation given a particular genotype. The term is equivalent to the ...

Epistasis

... other genes, which are sometimes called modifier genes. The gene whose phenotype is expressed ... epistasis n. , pl. -ses ( ). An interaction ... - the interaction between two or more genes to control a single phenotype ... Remember that epistasis is the interaction between different genes. ...

Complementation test

... which both have homozygous recessive mutations that produce the same phenotype . These strains are true breeding for their mutation. If, when these ... for temperature-sensitive mutants ... A site dedicated to ... type phenotype 5. Complementation is therefore a test of function. ... test (they ...

Antigenic variation

... ... Phase and antigenic variation result in a heterogenic phenotype of a clonal ... Antigenic variation refers to the expression of ... issues. Phase and antigenic variation result in a heterogenic phenotype of a clonal ... Antigenic variation refers to the expression of ...

Wild-type

... Wild type refers to the phenotype of the typical form of a species as it occurs in nature. Originally, the wild type was conceptualized as a product of the standard, ...

Wildtype

... Wild type refers to the phenotype of the typical form of a species as it occurs in nature. Originally, the wild type was conceptualized as a product of the standard, ... ...

Wild type

... Wild type refers to the phenotype of the typical form of a species as it occurs in nature. Originally, the wild type was conceptualized as a product of the standard, ...

Revertant

... In microbial genetics, a revertant is a mutant that has reverted to its former genotype or to the original phenotype by means of a suppressor mutation. Definition of revertant from the Merriam-Webster Online Dictionary with audio pronunciations, thesaurus, ...

Recessive

... set inherited from each parent, and ... In genetics, dominance describes the effects of the different versions of a particular gene on the phenotype of an organism. Many animals and plants have two copies of each gene in their genome, one inherited from ... recessive adj. Tending to ...

Quantitative trait loci

... ) ( genetics ) The location of a gene ... 2 Quantitative trait locus . 3 QTL mapping. 4 Analysis of ... quantitative trait n. A phenotype that is influenced by multiple genes. ... Mapping of quantitative trait loci . Candidate gene. Genetic association. Introgression ... What ...

Positional cloning

... A genetic screen is a procedure or test to identify and select individuals who possess a phenotype of interest. A genetic screen for new genes is often referred to as forward genetics as opposed to reverse genetics, the term for identifying ...

Polygenic disorders

... , they have to be considered ... Polygenic disorders have been more difficult for breeders to manage. ... In polygenic disorders , the phenotype of the individual does not directly ... Genetic Disorders That Can Be Detected Prenatally. Genetic disorders may result from defects in genes ...

Penetrance

... a disease causing mutation is the proportion ... penetrance n. The frequency, under given environmental conditions, with which a specific phenotype is expressed by those individuals with a specific Reduced penetrance often occurs with familial cancer syndromes. ... As with reduced ...

Pachytene

... (Xu et al., 1995) ... Staging of pachytene nuclei based on the morphology of the XY pair with BRCA1 ... We suggest that the pachytene phenotype develops secondarily to a primary defect ... Figure 1: During early pachytene , SUMO-1 is observed in three different patterns. ... In a fourth ...

Maternal inheritance

... maternal inheritance an inheritance pattern in which all the progeny have the ... in which all the progeny have the genotype and phenotype of the maternal parent ... ...

Genetic screen

... A genetic screen is a procedure or test to identify and select individuals who possess a phenotype of interest. A genetic screen for new genes is often referred to as forward genetics as opposed to reverse genetics, the term for identifying ...

Gene amplification

... ... gene amplification n. A cellular process characterized by the production of multiple copies of a particular gene or genes to amplify the phenotype Consultants in genomics and bioinformatics, specifically acquired genetic disorders due to exposure of humans living near uncontrolled hazardous ...

Forebrain

... Free Trial, Credit Card Required. Online Shopping at DirectTextBook.com - Save up to 80%, buy or rent. New and used books like Distribution and phenotype of Proliferating Cells in the Forebrain ... A basal ganglia- forebrain circuit in the songbird biases motor output to avoid ... GABAergic and ...

Epistatic

... takes place when the effects of one gene are modified by one or several other genes, which are sometimes called modifier genes. The gene whose phenotype is expressed ... Epistatic Solutions is a specialist EAI consultancy, based in Australia. ... Copyright © 2007 Epistatic Solutions Pty Ltd. ...

Epigenetic

... In biology, the term epigenetics refers to changes in phenotype (appearance) or gene expression caused by mechanisms other than changes in the underlying DNA sequence, hence the name epi- -genetics. These ...

Epigenetics

... In biology, the term epigenetics refers to changes in phenotype (appearance) or gene expression caused by mechanisms other than changes in the underlying DNA sequence, hence the name epi- -genetics. These ...

Dominant gene

... set inherited from each parent, and ... In genetics, dominance describes the effects of the different versions of a particular gene on the phenotype of an organism. Many animals and plants have two copies of each gene in their genome, one inherited from ... People have two copies of ...

Contiguous gene syndrome

... syndrome is Angelman syndrome . ... contiguous gene syndrome ( kən¦tigyəwəs ′jēn ′sin′drōm ) ( genetics ) A characteristic complex phenotype produced by deletion of a short Contiguous gene syndrome . Synonym(s) contiguous gene deletion syndrome . Definition(s) A syndrome ...

Complementation

... refers to a relationship between two different strains of an organism which both have homozygous recessive mutations that produce the same phenotype . These strains are true breeding for their mutation. If, when these strains are ... In traditional music theory a complement is the ...

Codominance

... is the term used for a gene that has 2 or more dominant alleles. ... When the individual is heterozygous for 2 dominant alleles, the phenotype is a ... Codominance is when neither of the two forms of a trait are dominant over another. ... This means that both forms are dominant ...

Back Mutation

... ... point mutation , in which the nucleotide is changed back to its original state ... S. Ciocci, and J. German, " Back mutation can produce phenotype reversion in ... ... the possibility of mutation as a mechanism for evolution revolve around two premises: that mutations are almost always ...

Alleles

... particular locus. ... The alleles for a trait occupy the same locus or position on homologous ... Recessive alleles are expressed in the phenotype when the genotype is homozygous ... The alleles are IA, IB, and i, so the possible genotypes/phenotypes are IAIA or ... arise from various ...

Allele

... Alleles are now understood to ... In genetics, dominance describes the effects of the different versions of a particular gene on the phenotype of an organism. Many animals and plants have two copies of each gene in their genome, one inherited from ... An allele is a viable DNA ...

Acrocentric

... the smallest cow in the world, from the brink of extinction. (B) acrocentric -derived inverted duplication sSMC without associated clinical phenotype ... Potentially familial non- acrocentric derived sSMC are those that lead to ... ...
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