How could a "bad" gene-- the mutation that causes the sometimes lethal sickle cell disease -- also be beneficial? On the other hand, if it didn't provide some survival advantage, why had the ...

and he or she might even undergo heart attack or stroke—all because of a single nucleotide mutation (Figure 1). SNPs are important as markers, or signposts, for scientists to use when they look ...

A frameshift mutation is a genetic mutation caused by a deletion or insertion in a DNA sequence that shifts the way the sequence is read. A DNA sequence is a chain of many smaller molecules called ...

A genetic mutation has appeared in dairy cows that could make the virus more deadly and transmissible Scientists say dairy herds in San Bernardino County are the likely source Since the outbreak ...

By Gina Kolata Researchers have corrected a disease-causing gene mutation with a single infusion carrying a treatment that precisely targeted the errant gene. This was the first time a mutated ...

An H5N1 bird flu mutation associated with increased infectiousness and disease severity has been found in two cats. Since the beginning of this year, more than 50 cats have been infected with H5N1 ...