Instructor: Prof. Mel Green - A National Academy of Sciences member since 1980, Prof. Mel Green's research has centered on finding answers for a number of unresolved genetic questions.  These include: (1) fine structure identifying the reciprocal to the wild type recombinants, (2) demonstrating that x-rays could produce reverse mutations, (3) demonstrating the origin of tandem duplications via unequal crossing over, and (4) uncovering the genetic basis for the origin of attached X chromosomes. Noteworthy too was the discovery of mobile DNA elements in Drosophila.  Prof. Mel Green received his PhD in Zoology and Biochemistry from the University of Minnesota in 1942, and was awarded a PhD honoris causa from the University of Uumeaa in Sweden in 1972. He was the recipient of two John Simon Guggenheim fellowships, 1956 and 1968.  He joined faculty position of UC Davis in 1950 and taught general genetics, cytogenetics, and human genetics.  In the past years, he was invited to participate in teaching the history of genetics for graduate students of Department of Molecular and Cellular Biology at UC Davis.