More and more species are becoming endangered and facing the threat of extinction because of human activities. To ensure that these species aren't lost forever, the U.S. Fish and Wildlife Service is ...

Pasadena, Calif.–Scientists at the California Institute of Technology (Caltech) and IBM’s Almaden Research Center have developed a new technique to orient and position self-assembled DNA shapes and ...

With the technique called polymerase chain reaction (PCR), scientists can make multiple copies of a specific genetic sequence within DNA. PCR is a powerful tool for researchers because it allows for ...