mutation

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mu·ta·tion

 (myo͞o-tā′shən)
n.
1. The act or process of being altered or changed.
2. An alteration or change, as in nature, form, or quality.
3. Genetics
a. A change in the nucleotide sequence of the genome of an organism or virus, sometimes resulting in the appearance of a new character or trait not found in the parental type.
b. The process by which such a change occurs, either through an alteration in the nucleotide sequence coding for a gene or through a change in the physical arrangement of the genetic material.
c. The nucleotide sequence, trait, or individual that results from such a change.
4. Linguistics
a. A change affecting a sound or a class of sounds, such as back vowels or plosive consonants, through assimilation to another sound, as in the process of umlaut.
b. A change affecting a sound or a class of sounds that is conditioned by morphological or syntactic factors rather than purely phonological factors, as in Irish, where certain words cause the lenition of the initial consonants of the following word.

[Middle English mutacioun, from Old French mutacion, from Latin mūtātiō, mūtātiōn-, from past participle of mūtāre, to change; see mutate.]

mu·ta′tion·al adj.
mu·ta′tion·al·ly adv.

mutation

(mjuːˈteɪʃən)
n
1. (Genetics) the act or process of mutating; change; alteration
2. a change or alteration
3. (Genetics) a change in the chromosomes or genes of a cell. When this change occurs in the gametes the structure and development of the resultant offspring may be affected. See also inversion11
4. (Genetics) another word for mutant1
5. (Genetics) a physical characteristic of an individual resulting from this type of chromosomal change
6. (Phonetics & Phonology) phonetics
a. (in Germanic languages) another name for umlaut
b. (in Celtic languages) a phonetic change in certain initial consonants caused by a preceding word
muˈtational adj
muˈtationally adv

mu•ta•tion

(myuˈteɪ ʃən)

n.
1. Biol.
a. a sudden departure from the parent type in one or more heritable characteristics, caused by a change in a gene or a chromosome.
b. an individual, species, or the like resulting from such a departure.
2. the act or process of changing.
3. a change or alteration, as in form or nature.
4. a change in a speech sound caused by assimilation to a nearby sound, esp. umlaut.
[1325–75; Middle English < Latin]
mu•ta′tion•al, adj.
mu•ta′tion•al•ly, adv.

mu·ta·tion

(myo͞o-tā′shən)
A change in the genes or chromosomes of an organism. Mutations occurring in the reproductive cells, such as an egg or sperm, can be passed from one generation to the next. Most mutations have harmful effects, but some can increase an organism's ability to survive. A mutation that benefits a species may evolve by means of natural selection into a trait shared by all members. See Note at sickle cell anemia.

Mutation

 of thrushes: group of moulting birds.

mutation

1. Inheritable change in a gene‘s DNA.
2. Change in a gene or genes of a living cell. A mutation in some way changes the cell’s characteristics and will be inherited. See chromosome, genes.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.mutation - (biology) an organism that has characteristics resulting from chromosomal alterationmutation - (biology) an organism that has characteristics resulting from chromosomal alteration
organism, being - a living thing that has (or can develop) the ability to act or function independently
biological science, biology - the science that studies living organisms
freak, lusus naturae, monstrosity, monster - a person or animal that is markedly unusual or deformed
2.mutation - (genetics) any event that changes genetic structure; any alteration in the inherited nucleic acid sequence of the genotype of an organism
genetic science, genetics - the branch of biology that studies heredity and variation in organisms
alteration, change, modification - an event that occurs when something passes from one state or phase to another; "the change was intended to increase sales"; "this storm is certainly a change for the worse"; "the neighborhood had undergone few modifications since his last visit years ago"
deletion - (genetics) the loss or absence of one or more nucleotides from a chromosome
inversion - (genetics) a kind of mutation in which the order of the genes in a section of a chromosome is reversed
transposition - (genetics) a kind of mutation in which a chromosomal segment is transfered to a new position on the same or another chromosome
mutagenesis - an event capable of causing a mutation
gene mutation, point mutation - (genetics) a mutation due to an intramolecular reorganization of a gene
reversion - (genetics) a return to a normal phenotype (usually resulting from a second mutation)
saltation - (genetics) a mutation that drastically changes the phenotype of an organism or species
3.mutation - a change or alteration in form or qualities
alteration, change, modification - an event that occurs when something passes from one state or phase to another; "the change was intended to increase sales"; "this storm is certainly a change for the worse"; "the neighborhood had undergone few modifications since his last visit years ago"

mutation

noun
1. anomaly, variation, deviant, freak of nature Scientists have found a genetic mutation that causes the disease.
2. change, variation, evolution, transformation, modification, alteration, deviation, metamorphosis, transfiguration I was forced to watch my father's mutation from sober to drunk.

mutation

noun
1. The process or result of making or becoming different:
2. The process or result of changing from one appearance, state, or phase to another:
Translations
mutace
mutation
stökkbreyting
変異突然変異

mutation

[mjuːˈteɪʃən] Nmutación f

mutation

[mjuːˈteɪʃən] nmutation f

mutation

n (= process)Veränderung f; (= result)Variante f; (Biol) → Mutation f; (Ling) → Wandel m(to zu)

mutation

[mjuːˈteɪʃn] nmutazione f

mu·ta·tion

n. mutación, alteración, cambios espontáneos o inducidos en la estructura genética.

mutation

n mutación f; BRCA — mutación BRCA
References in periodicals archive ?
As per to the company, this epitope, or hierotope, is not only conserved across all influenza subtypes, but is also resistant to virus mutation.
Virus mutation, a common pathway to drug resistance, is not expected to be a potential pathway to tipifarnib resistance by HDV.
The origins of the new syndrome are unclear, although some theories point to the possibility of a virus mutation from animals to humans.
The World Health Organization (WHO) said last week that the rise in cases this year was not surprising due to seasonal factors, rather than a virus mutation.
The World Health Organisation has warned that cases of H1N1 could spike during the winter season while virus mutation with seasonal flu virus could also have deadly consequences.
Figures collected from laboratories around the world since April show no sign of virus mutation that causes more serious illnesses; the vaccine in production will be effective against the virus,'' Chan said.
Multiple experimental studies have better defined conditions for virus mutation and the creation of reassortants.
A varicella-zoster virus mutation identified in 1998 and thought to be a "serendipitous chance mutation" was isolated for a second time in 1999, this time in an elderly man presenting with severe facial lesions, reported Graham A.