For example, a gene mutation caused a rare disorder called adermatoglyphia, which is when someone is actually born without fingerprints.Though it seems like it would be useful (to criminals at least) it's actually far from it.About the only thing this genetic mutation does is cause delays for non-U.S. residents at airport security when they try to enter the country.Regulations require all non-residents be fingerprinted when they enter the country.It's often even referred to as "immigration delay disease."Another gene mutation that one might consider a superpower could have been caused by the Black Plague.It's one of many deadly diseases that killed hundreds of thousands in Europe during the Middle Ages.But scientists now think it could have caused a mutation of the gene CCR5-A32 that left one in 10 Europeans immune to HIV.In fact, a healthy bone marrow donor with the CCR5-A32 mutation passed it on to an HIV positive leukemia patient, ultimately curing him of HIV.Studying gene mutation can naturally lead scientists to gene manipulation — that's when they directly manipulate the genome using molecular engineering techniques.