Proefschrift--Utrecht. / Bibliography: p. 83-87.

<p> The phenomenon of genetic recombination is of fundamental importance to the evolution and adaptation of species, and is a valuable laboratory aid to the biological scientist. Probable mechanisms of control of recombination are largely unknown, due partly to the difficulty of obtaining artificial mutants affecting the process. The studies reported here avoid this difficulty by the use of different factors controlling recombination which occur naturally in the species Neurospora crassa and N. sitophila. Studies of hybrid N. crassa strains carrying factors from N. sitophila are described, and some models for the control of genetic recombination are discussed. </p> / Thesis / Master of Science (MSc)