1. Ecdysone and a dietary alkaloid interact in the development of the pheromone gland of a male moth (Creatonotos, Lepidoptera: Arctiidae)

   • Beate Schmitz
   • Martina Buck
   • Dietrich Schneider

   OriginalPaper Pages: 1 - 7

2. A mesoderm-inducing factor from a Xenopus laevis cell line

   • Horst Grunz
   • Jochen Born
   • Hildegard Tiedemann

   OriginalPaper Pages: 8 - 13

3. 20-Hydroxyecdysone induced aggregation of Drosophila S3 cells is inhibited by antibodies to a hormone-dependent extracellular glycoprotein

   • Samuel Galewsky
   • Wayne L. Rickoll

   OriginalPaper Pages: 14 - 18

4. Mechanisms of arm-tip regeneration in the sea star, Leptasterias hexactis

   • Philip V. Mladenov
   • Brent Bisgrove
   • Robert D. Burke

   OriginalPaper Pages: 19 - 28

5. The atokous-epitokous border is determined before the onset of heteronereid development in Platynereis dumerilii (Annelida, Polychaeta)

   • Gabriele Schulz
   • Klaus Peter Ulbrich
   • Hans-Dieter Pfannenstiel

   OriginalPaper Pages: 29 - 33

6. Further analysis on the male-specific lethal mutations that affect dosage compensation in Drosophila melanogaster

   • Daniel Bachiller
   • Lucas Sánchez

   OriginalPaper Pages: 34 - 38

7. Formation of the receptor system in the hind limb of the locust embryo

   • Wolfram Kutsch

   OriginalPaper Pages: 39 - 47

8. Use of BRL-conditioned medium in combination with feeder layers to isolate a diploid embryonal stem cell line

   • Alan H. Handyside
   • Gerard T. O'Neill
   • Martin L. Hooper

   OriginalPaper Pages: 48 - 56