In systemic searches for embryonic lethal mutants of Drosophila melanogaster we have identified 15 loci which when mutated alter the segmental patterns of the larva. These loci probably represent the majority of such genes in Drosophila. The phenotypes of the mutant embryos indicate that the process of segmentation involves at least three levels of spatial organization: the entire egg as developmental unit, a repeat unit with the length of two segments, and the individual segment.

I think there are profound differences between women and men. In intelligence and creativity, there is no difference, but in what one loves, what one likes, the passions - there are differences.

If woman wants to have kids and work a little less she has a big disadvantage compared to a male colleague who has a stay-at-home wife packing his suitcases.

I think women who are pretty certainly have an advantage in any field, in any profession. When a girl is born people still say: Oh, I'm glad that she is pretty. They don't look at whether she is intelligent.

At the time I finished high school, I was determined to study biology, deeply convinced to eventually be a researcher.

The three of us have worked on the development of the small and totally harmless fruit fly, Drosophila. This animal has been extremely cooperative in our hands - and has revealed to us some of its innermost secrets and tricks for developing from a single celled egg to a complex living being of great beauty and harmony. ... None of us expected that our work would be so successful or that our findings would ever have relevance to medicine.

Successful women are not liked. I think the biggest danger for women in science is colleagues who are not as good as you are.