Frans Alfons Janssens
Belgian biologist and university teacher
About Frans Alfons Janssens
Lived 1863 – 1924 (aged 61). Frans Alfons Janssens was a Belgian biologist, university teacher and zoologist.
Frans Alfons Ignace Maria Janssens (23 July 1863 – 8 October 1924) was Catholic priest and the discoverer of crossing-over of genes during meiosis, which he called "chiasmatypie". His work was continued by the Nobel Prize winner Thomas Hunt Morgan to develop the theory of genetic linkage.
Life Frans Janssens was born in Sint-Niklaas, the son of Theodoor Janssens, a politician. He was ordained as a priest on 18 September 1886, and obtained a PhD in Natural Science in 1890, with the highest honors and a scholarship to attend many prestigious foreign laboratories. In 1891 he became a teacher in Ghent.
Legacy
In 1953, the Catholic University of Leuven founded the F. A. Janssens Laboratory of Genetics". The laboratory is now known as the Center of Microbial and Plant Genetics.
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Frequently asked questions
Who was Frans Alfons Janssens?
Belgian biologist and university teacher (1865-1924)
When was Frans Alfons Janssens born?
Frans Alfons Janssens was born on 23 July 1863 in Sint-Niklaas.
When did Frans Alfons Janssens die?
Frans Alfons Janssens died on 8 October 1924 in Wichelen.
What was Frans Alfons Janssens's occupation?
Frans Alfons Janssens was a biologist, university teacher and zoologist.
What nationality was Frans Alfons Janssens?
Frans Alfons Janssens was Belgian.
Sources & further reading
· Wikipedia: Frans Alfons Janssens
· DBpedia: Frans Alfons Janssens
Cite this page
APA: Biography.guide. (2026). Frans Alfons Janssens. https://biography.guide/frans-alfons-janssens/
MLA: "Frans Alfons Janssens." Biography.guide, https://biography.guide/frans-alfons-janssens/.
Chicago: "Frans Alfons Janssens." Biography.guide. https://biography.guide/frans-alfons-janssens/.
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