1. Upregulation of a Hydra vulgaris cPKC gene is tightly coupled to the differentiation of head structures

   • Monika Hassel

   ORIGINAL ARTICLE Pages: 489 - 501

2. The level of expression of a protein kinase C gene may be an important component of the patterning process in Hydra

   • M. Hassel
   • Diane M. Bridge
   • Robert E. Steele

   ORIGINAL ARTICLE Pages: 502 - 514

3. Cihox5, a new Ciona intestinalis Hox-related gene, is involved in regionalization of the spinal cord

   • Michela Gionti
   • Filomena Ristoratore
   • R. Di Lauro

   ORIGINAL ARTICLE Pages: 515 - 523

4. Cyclin A, cyclin B and stringlike are regulated separately in cell cycle arrested trochoblasts of Patella vulgata embryos

   • Annemieke van der Kooij
   • Christiaan P. W. M. Veraart
   • André E. van Loon

   ORIGINAL ARTICLE Pages: 524 - 534

5. The expression of histone genes during Drosophila melanogaster oogenesis

   • Janis Walker
   • M. Bownes

   ORIGINAL ARTICLE Pages: 535 - 541

6. Growth, metastasis, and invasiveness of Drosophila tumors caused by mutations in specific tumor suppressor genes

   • E. Woodhouse
   • Evelyn Hersperger
   • A. Shearn

   ORIGINAL ARTICLE Pages: 542 - 550

7. Epigenotype switching of imprintable loci in embryonic germ cells

   • T. Tada
   • M. Tada
   • M. A. Surani

   ORIGINAL ARTICLE Pages: 551 - 561