- a sudden departure from the parent type in one or more heritable characteristics, caused by a change in a gene or a chromosome.
- an individual, species, or the like, resulting from such a departure.
- the act or process of changing.
- a change or alteration, as in form or nature.
- Phonetics. umlaut.
- Linguistics. (in Celtic languages) syntactically determined morphophonemic phenomena that affect initial sounds of words.
Origin of mutation
Examples from the Web for mutations
Over time, researchers were able to link many of these disorders with mutations in single genes.The Genetic Heroes That Could Cure the Sick
July 1, 2014
Throughout the process the program throws in random changes in a command or variable— these are mutations.This is What Happens When You Teach Machines the Power of Natural Selection
February 1, 2014
Also, there is proof that mutations in the human genome are not random, which opens the door for evolution with a purpose.Ask the Big Questions
Deepak Chopra, Leonard Mlodinow
October 26, 2011
The steps in this chronological variation were termed by Waagen "mutations."Form and Function
E. S. (Edward Stuart) Russell
In others, chromosomal aberrations occur, resulting in mutations.Attrition
In the following tables cases of the use of mutations are shown.A Handbook of the Cornish Language
How these sports or mutations come about we can now surmise.Mendelism
Reginald Crundall Punnett
For the late Mr. Farendell had suffered some change of mind with his other mutations.Openings in the Old Trail
- the act or process of mutating; change; alteration
- a change or alteration
- 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 affectedSee also inversion (def. 11)
- another word for mutant (def. 1)
- a physical characteristic of an individual resulting from this type of chromosomal change
- (in Germanic languages) another name for umlaut
- (in Celtic languages) a phonetic change in certain initial consonants caused by a preceding word
Word Origin and History for mutations
late 14c., "action of changing," from Old French mutacion (13c.), and directly from Latin mutationem (nominative mutatio) "a changing, alteration, a turn for the worse," noun of action from past participle stem of mutare "to change" (see mutable). Genetic sense is from 1894.
- The act or process of being altered or changed.
- An alteration or change, as in nature, form, or quality.
- A sudden structural change within a gene or chromosome of an organism resulting in the creation of a new character or trait not found in the parental type.
- The process by which such a sudden structural change occurs, either through an alteration in the nucleotide sequence of the DNA coding for a gene or through a change in the physical arrangement of a chromosome.
- A mutant.
- A change in the structure of 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 occur in junk DNA and have no discernible effects on the survivability of an organism. Of the remaining mutations, the majority have harmful effects, while a minority 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 some or all members of the species. See Note at sickle cell anemia.
Changes in chromosomes or genes that cause offspring to have characteristics different from those of their parents. Mutations can be caused by the effects of chemicals, radiation, or even ordinary heat on DNA. Mutations produce some of the differences between members of a species on which natural selection acts.