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.
Christiane Nusslein-VolhardEveryone thinks I must have been an ace in school. But I didn't work hard, I was lazy. I liked to be lazy. I thought laziness stimulated your imagination.
Christiane Nusslein-VolhardI had a very intense relationship with my father, who was always extremely interested in what we kids were doing. I actually think the secret of many successful women is having a father who encourages them.
Christiane Nusslein-VolhardThe pressure on kids is high to get good grades. In my time, no one cared about it. My father looked at them but he didn't really make much fuss about them.
Christiane Nusslein-Volhard