Nonsense Mutation

Nonsense mutation is a type of genetic mutation in which a single nucleotide change in DNA results in a premature stop codon, resulting in a truncated and usually nonfunctional protein. The significance of nonsense mutations is their ability to quickly change the genetic code of an organism, and their contribution to the development of new traits. They are particularly important in diseases caused by single-gene mutations, such as cystic fibrosis, as well as in the emergence of antibiotic resistance in bacteria. Nonsense mutations are also being studied as a possible way to introduce desirable traits into organisms, such as to increase crop yields or develop new vaccines.