INTERNATIONAL REVIEW OF CYTOLOGY V95, Volume 95

Content: Advisory Editors Page ii Copyright Page Page iv Contributors Page vii Chromosomal Localization of Protooncogenes Original Research Article Pages 1-43 Allan Tereba Target Cell Prolactin, II Original Research Article Pages 045-60 Janet M. Nolin Genetic Aspects of Drosophila as a Model System of Eukaryotic Aging Original Research Article Pages 61-102 Peter J. Mayer, George T. Baker III Histogenesis of the Cells of the Anterior and Intermediate Lobes of Human Pituitary Glands: Immunohistochemical Studies Original Research Article Pages 103-129 R. Yoshiyuki Osamura, Keiichi Watanabe Peroxisomes of the Kidney Original Research Article Pages 131-162 Shinichi Ohno Enzyme Cytochemistry Original Research Article Pages 163-227 M. Borgers, A. Verheyen Cell Position and Cell Interactions in Expression of Fetal Phenotype of Hepatocyte Original Research Article Pages 229-266 A.S. Gleiberman, G.I. Abelev Primitive Never-Dividing Macronuclei of Some Lower Ciliates Original Research Article Pages 267-325 Igor B. Raikov The Unicellular Tetrahymena as a Model Cellfor Receptor Research Original Research Article Pages 327-377 G. Csaba Index Pages 379-385 Contents of Recent Volumes Pages 387-390 The adaptive immunity, which provides flexibility and specificity to the defense mechanisms, has two branches: cellular and humoral.