Also, there is proof that mutations in the human genome are not random, which opens the door for evolution with a purpose.
Over time, researchers were able to link many of these disorders with mutations in single genes.
Throughout the process the program throws in random changes in a command or variable— these are mutations.
It is evident, however, that these slight and local phenomena furnish but little clue to the mutations of past periods.
The steps in this chronological variation were termed by Waagen "mutations."
mutations, on the other hand, only happen to occur from time to time.
In others, chromosomal aberrations occur, resulting in mutations.
The mutations seem to have started in the second half of the 6th century in the case of the tenues.
How these sports or mutations come about we can now surmise.
Besides breeding, we are able also to use some of the mutations or bud sports to improve our nuts as well as fruits.
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.
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.