mutant

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Related to Mutant phenotype: back mutation

mutant

an animal, organism, or gene that has undergone mutation

Mutant

 

a hereditarily altered form of an organism that differs from the original type in some abnormality that arose through mutation.

Organisms with hereditary changes that appear suddenly have been known for several hundreds of years. For example, at the end of the 18th century a mutant form of sheep with short legs appeared. It later became the first of the Ancona breed. After the discovery of artificial mutagenesis in the 1920’s and 1930’s, numerous mutants of microorganisms, plants, and animals were obtained and used both for actual breeding purposes and for experiments designed to determine patterns in the mutation process. Both the biochemistry of genetics and many metabolic processes were elucidated by means of biochemical mutants that had lost the capacity of the original, wild type microorganism to synthesize essential compounds, such as vitamins, amino acids, and nitrogenous bases.

S. M. GERSHENZON

mutant

[′myüt·ənt]
(genetics)
An individual bearing an allele that has undergone mutation and is expressed in the phenotype.

mutant

(programming)
Microsoft's term for a mutex which is generally used in user mode but can also be used in kernel mode. According to this terminology a mutex is only used in kernel mode.

["Microsoft Windows NT Workstation Resource Kit"].
References in periodicals archive ?
The virulence of the hepatitis A virus stems from two genes that can revert in vivo from an attenuated mutant phenotype to the virulent wild-type phenotype, said Suzanne U.
The pim mutant phenotype is more severe in the broccoli (broc) background, much like the interaction reported between cauliflower (cat) and apl in A.
The issued patent describes the use of the company's patented platform process, morphogenics, to rapidly evolve mammalian cell lines in the presence of the pathogen of interest for which a pharmaceutical is sought, followed by mutant selection, stabilization of the mutant phenotype, and ultimately, discovery of the antimicrobial agent expressed by the mutant cell line.
Here it is most efficient to search using both the mutant phenotype and the allele symbol fields.
elegans, we showed genetically that loss of RAS suppressed let-7 [4] mutant phenotypes in the skin and vulval stem cells.