The work of the scientist credited with the discovery of what he called "chiasmatypie" was continued by what American scientist? 
Frans Alfons Janssens:  He is the discoverer of the crossing-over of genes during meiosis, which he called 'chiasmatypie'. Frans Alfons Janssens:  His work was continued by the Nobel Prize winner Thomas Hunt Morgan to develop the theory of genetic linkage.
i don't know