He relied on the discovery of the Belgian Professor Frans Alfons Janssens of the University of Leuven who described the phenomenon in 1909 and had called it 'chiasmatypie'.
Frans Alfons Janssens, (1865-1924), Belgian biologist who first described chromosomal crossover
Frans Hals | Lange Frans | Frans van der Hoff | Frans Widerberg | Frans Helmerson | Frans Brüggen | Frans Bauer | Janssens | Frans Pourbus | Frans de Waal | Frans Bruggen | Frans Wiertz | Frans van der Mijn | Frans van der Hoeven | Frans Tumbuan | Frans Post | Frans Koppelaar | Frans Hals Museum | Frans Alfons Janssens | Alfons Verplaetse | Alfons Benedikter | ''William Fitzwilliam, Second Lord Fitzwilliam of Liffer'', Cornelis Janssens van Ceulen | ''Meeting of Arenberg with his troops'', 1662, by Adam Frans van der Meulen | Mark Janssens | Lange Frans & Baas B | Joseph Frans Lescrauwaet | Jan Willem Janssens | Frans Wilhelm Lindqvist | Frans Wildenhain | Frans Weisz |