Bibliography: leaves 164-199. / ix, 199, [19] leaves, [17] leaves of plates : ill. (some. col.) ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Studies the cloning and characterisation of the Aspergillus nidulans creA gene whose product is suggested as a negatively acting regulatory protein in carbon catabolite repression. / Thesis (Ph.D.)--University of Adelaide, Dept. of Genetics, 1991