1. Phenotypic and developmental analysis of mutations at thecrumbs locus, a gene required for the development of epithelia inDrosophila melanogaster

   • Ulrich Tepaß
   • Elisabeth Knust

   OriginalPaper Pages: 189 - 206

2. An 83-kDa embryonic-type nuclear antigen is detected within the germinal vesicles of oocytes of the ascidianHalocynthia roretzi

   • Shigeki Fujiwara
   • Noriyuki Satoh

   OriginalPaper Pages: 207 - 211

3. Pulse treatment of sea urchin embryos with A23187 blocks their hatching out

   • Akiko Fujiwara
   • Ikuo Yasumasu

   OriginalPaper Pages: 212 - 218

4. Control of the developmental timer forDrosophila pupariation

   • Clifton A. Poodry
   • Daniel F. Woods

   OriginalPaper Pages: 219 - 227

5. The contractility of elongated microvilli in early sea urchin embryos

   • Evelyn Spiegel
   • Louisa Howard
   • Melvin Spiegel

   OriginalPaper Pages: 228 - 236

6. In vitro evidence that interactions betweenXenopus blastomeres restrict cell migration

   • Steven L. Klein
   • Marcus Jacobson

   OriginalPaper Pages: 237 - 245

7. F-Actin is a marker of dorsal induction in earlyPatella embryos

   • Florenci Serras
   • Johanna E. Speksnijder

   OriginalPaper Pages: 246 - 250