A New Tool for Genetically Engineering the Oldest Branch of Life March 7, 2017 A new study by G. William Arends Professor of Microbiology Bill Metcalf and IGB Fellow Dipti Nayak has documented the use of CRISPR-Cas9 mediated genome editing in the third domain of life, Archaea, for the first time. March 7, 2017 Tags Tags archaea CRISPR Metcalf Nayak Related Articles