For some illnesses, having a mutation in one specific gene usually—but not always—caused disease.
If a mutation makes a single cell deaf to the needs of its body, it can develop into a tumor.
Those with the disease have some cells that are genetically normal and some with the mutation.
The answer may be that the birther phenomenon is a mutation of a political virus called incoherence.
This was a mutation of a relationship that should, in theory, be unbreakably strong.
It is illogical, for it seeks to prove an immutable Deity by demonstrating a mutation on the part of Deity.
Time is, therefore, not a factor in the mutation of species.
They then cease to be subject to mutation,—Mind being immutable,—and persist in eternal blessedness and love.
Apart from every thing else, it was a mournful witness to the world's mutation.
Unless due to crossing-over it must have been a mutation from spot back to yellow.
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.
mutation mu·ta·tion (myōō-tā'shən)
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 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.