Which is the correct way to complete the paragraph below?
Scientists ______Duke University,_____ , the US named a new genus of ferns discovered throughout the Americas ______ pop superstar Lady Gaga. When examining the ferns' DNA, the scientists spotted the base pair sequence G-A-G-A - just like the singer. They also noted the ferns display gender fluidity, a major theme ______Lady Gaga’s work.
(Adapted from http: / / blog, oxforddictionaries .com)