It will be very unpleasant to live three hundred years and die because of brain failure, because we did not take into account the accumulation of small mutations. (fightaging.org)
According to VIN, commercial genetic testing uses small mutations in the canine DNA (single - nucleotide polymorphisms, or «snips»), to determine a breed (VIN). (mykidhaspaws.org)
A new study investigating the difference between the 1918 pandemic flu virus — which killed at least 50 million people — and a virus which kills but does not spread turned out to be two small mutations on the virus's surface. (newscientist.com)