Latest Mutation Stories
Sometimes, when the DNA in a cell is copied during cell division, there is a mistake.
Japanese researchers have identified a mutation associated with a higher incidence of lung cancer in Japanese women who do not smoke, but better survival in lung cancer patients.
Biologists reported today in Nature that they have identified two pathways through which chromosomes are rearranged in mammalian cells.
Researchers have tied mutations in a gene that causes amyotrophic lateral sclerosis (ALS) and other neurodegenerative disorders to the toxic buildup of certain proteins and related molecules in cells, including neurons.
With over 1,900 mutations in the genes responsible for cystic fibrosis (CF), separating the harmful alterations from the benign ones has been a long, arduous undertaking for geneticists. Until now, that is.
Concealed within the vastness of the human genome, (comprised of some 3 billion base pairs), mutations are commonplace.
Baker's yeast is a popular test organism in biology. Yeasts are able to duplicate single chromosomes reversibly and thereby adapt flexibly to environmental conditions. Scientists have now systematically studied the genetics of this process, which biologists refer to as aneuploidy.
Two women have the same genetic mutation – an abnormal BRCA1 gene that puts them both at much higher-than-average risk for breast cancer – but only one woman develops the disease.
Minor mutations in DNA code can make for major malfunctions and a breakthrough technique has allowed scientists to spot genetic changes with greater precision than ever.