Changes in DNA caused by mutation can cause errors in protein sequence, creating partially or completely non-functional proteins.
Nomenclature of mutations specify the type of mutation and base or amino acid changes.
A neutral mutation is a mutation that occurs in an amino acid codon (presumably within an mRNA molecule) that results in the substitution of a different, but chemically similar, amino acid.
Often, gene mutations that could cause a genetic disorder are repaired by the DNA repair system of the cell.
Such mutations are responsible for diseases such as Epidermolysis bullosa, sickle-cell disease, and SOD1 mediated ALS.
Evolutionary biologists have theorized that higher mutation rates are beneficial in some situations, because they allow organisms to evolve and therefore adapt more quickly to their environments.
A condition caused by mutations in one or more genes is called a genetic disorder.
Natural selection is proposed to increase beneficial mutations and select against and eliminate deleterious mutations.
A more recent theory says the selective pressure on the CCR5 Delta 32 mutation has been caused by smallpox instead of bubonic plague.
Silent mutations are DNA mutations that do not result in a change to the amino acid sequence of a protein.
In biology, mutation is a sudden change in the base pair sequence of the genetic material of a living organism, whether the genetic material be deoxyribonucleic acid (DNA) or ribonucleic acid (RNA).
Missense mutations or nonsynonymous mutations are types of point mutations where a single nucleotide is changed to cause substitution of a different amino acid.
Such mutations will be present in all descendants of this cell, and certain mutations can cause the cell to become malignant, and thus cause cancer.
When a mutation alters a protein that plays a critical role in the body, a medical condition can result.
Two classes of mutations are spontaneous mutations (molecular decay) and induced mutations caused by mutagens.
Mutations involve a change in the base pair of an organism's genetic material.
People who had this mutation were able to survive infection thus its frequency in the population increased.
Plants sometimes can transmit somatic mutations to their descendants asexually or sexually (in case when flower buds develop in somatically mutated part of plant).
Gene mutations have varying effects on health depending on where they occur and whether they alter the function of essential proteins.
A frameshift mutation is a mutation caused by indels, i.e.. inserts or deletes in a number of nucleotides that is not evenly divisible by three from a DNA sequence.
DNA has so-called hotspots, where mutations occur up to 100 times more frequently than the normal mutation rate.
A new Prime Minister was sworn in on October 1, 2006, and Thailand's king swore in a post-coup cabinet, chosen by new Prime Minister General Surayud Chulanont.
Back mutation is a change in a nucleotide pair of a point-mutated DNA sequence that restores the original sequence and hence the original phenotype.
Often, gene mutations that could cause a genetic disorder are repaired by the DNA repair system of the cell.
A mutation is a change in the sequence of the four bases along the backbone of DNA (or RNA).
The phrase silent mutation is often used interchangeably with the phrase synonymous mutation; however, synonymous mutations are a subcategory of the former, occurring only within exons.
Mutualism even has enabled organisms to colonize stressful habitats and survive successfully even at self-insufficiency.
A point mutation, or substitution, is a type of mutation that causes the replacement of a single base nucleotide with another nucleotide.