b Kinetic complexity of genome and gene expression during development (DNA-DNA reassociation 



and DNA-RNA hybridisation reactions). Phyllacanthus spp., Stomopneustes spp., 



Strongylocentrotus spp., Heterocentrotus spp. (Echinoidea) 

 YANAI, J.; Ph.D. - Dept. of Anat. and Embryol., Hebrew Univ. - Hadassah Med. Sch., P.O.Box 



1172. JERUSALEM 91000, Israel 

 a Long-term effects of prenatal administration of psychoactive drugs and other agents on brain 



morphology, biochemistry and behavior. Mouse 

 YANG, S. P.; Ph.D. - Dept. of Biomorphics, Natl. Defense Med. Ctr., P.O.Box 8244, TAIPEI 107, 



Taiwan, Rep. of China 

 a Nucleic acids in development 



b Tryptophan oxygenase synthesis in uterus in response to liver mRNA. Mouse 

 c Immunological approach to sex preselection. Man 

 YAROSS, Ms. M. S.; Ph.D. - Dept. of BioL, Univ. of Virginia, GUmer HaU, CHARLOTTESVILLE, 



VA 22901, USA 

 YASUDA, K.; Ph.D. - Lab. of Cell Sci., Inst, of Biophys. and Molec. Biol., Univ. of Kyoto, 



Kitashirakawa, Sakyo-ku, KYOTO, 606 Japan 

 a Molecular events in the transdifferentiation of retinal cells in culture. Quail, Chicken 

 YASUDA, M.;M.D.,Prof. - Dept. of Anat., Hiroshima Univ., Kasmi 1 -2-3, Minami-ku, HIROSHIMA, 



734 Japan 

 a Morphogenesis of certain malformations of extremities in embryos. Mouse, Man 

 b Enzyme development in embryos. Mouse, Rat 

 c Embryotoxicity of various chemicals. Mouse, Rat 



YASUDA, Ms. Y.; M.D. - Dept. of Anat., Sch. of Med., Kinki Univ., Sayamacho, OSAKA, 589 Japan 

 a Transplacental carcinogenicity of ethinylestradiol administered during 11th to 17th day of 



gestation. Mouse 

 b Effect on fertility and spermatogenesis of heavy metals, injected intratesticular or intraperitoneal 



as potassium dichromate and mercurychloride. Mouse 

 c Transplacental effect on reproductive organs and pituitary of estradiol given by gastric intubation 



on day 14 or 17 of pregnancy. Mouse 

 YASUGI, S.; D.Sc. - Zool. Inst., Univ. of Tokyo, Hongo, Bunkyo-ku, TOKYO, 113 Japan 

 a Tissue interactions in differentiating digestive organs. Quail, Chicken 

 b Regulation of isozyme synthesis during development. Species as a, and Anas platyrhychos 



domestica (Aves) 

 YAZAKl,Ms. I.;M.Sc. - Embryol. Sect., Dept. of Biol., Tokyo Metropolitan Univ., 2-1-1, Fukazawa, 



Setagaya-ku, TOKYO, 158 Japan 

 a Behavior of the egg surface during development studied by a fluorescent antibody specific to it. 



Hemicentrotus pulcherrimus, Antliocidaris crassispina (Echinoidea) 

 YEW, D. T.; Ph.D. - Dept. of Anat., Univ. of Hong Kong, Li Shu Fan Bldg., 5 Sassoon Rd., HONG 



KONG 

 a Effects of light (different wavelengths, also laser) and neurotrophic agents on prenatal and 



postnatal development of eye (part, retina) and visual pathways. Mouse, Rat 

 b Morphology, morphometry and biochemistry of prenatal eye development. Man 

 c Afferent interruption and its effect on visual system development. Mouse, Rat 

 YNTEMA, C. L.; Ph.D.. Prof. - Dept. of Anat.. Upstate Med. Ctr., State Univ. of New York, 766 



Irving Ave., SYRACUSE, NY 13210, USA 

 a Effects of temperature on development. (Chelonia) 

 YOFFEY, J. M.; D.Sc, M.D., Prof. - Dept. of Anat. and Embryol., Hebrew Univ. - Hadassah Med. 



School, P.O.Box 1172, JERUSALEM 91000, Israel 

 a Kinetic properties of haemopoietic stem cells in prenatal and postnatal life, and factors 



controlling their differentiation and migration 

 YOKOYA, S.; Dr. - Div. of Cell Sci., Centr. Res. Lab., Fukushima Med. CoU., FUKUSHIMA, 960 



Japan 

 a Mechanism of hatching. Salmo gairdneri, S. trutta, Salvelinus fontinalis (Teleostei) 

 b Morphogenesis during early stages of development. Oryzias latipes (Teleostei) 

 YONEDA, M.; D.Sc, Prof. - Lab. of Devi. Biol., Dept. of Zool., Kyoto Univ., Sakyo-ku, KYOTO, 



606 Japan 

 a Physical properties of eggs and oocytes in relation to: 1) cleavage and meiotic division; 2) 



structure of the cell surface. (Echinodermata) 

 YOSHIDA, K.; M.D. - Dept. of Anat., Sch. of Med., Shinshu Univ., Asahi 3-1-1, MATSUMOTO 



390, Japan 

 a Development of eyes in embryo and newborn (EM autoradiography). Mouse, Rat, Man 

 YOSHIDA, O.; Ph.D. - Biol. Lab.. Chiba Univ., Yayoi-cho 1-33,CH1BA, 260 Japan 

 a Correlation between pollen and stigma; fertilisation process of male and female gamete. 



Schoepfia jasminodora (Olacaceae), various spp. (Ulmaceae) 

 YOSHIDA, S.; M.D. - Dept. of PhysioL, Inst, for Brain Res., Kyoto Univ., Yoshidakonoe-cho, Sakyo- 

 ku, KYOTO, 606 Japan 

 YOSHIKAWA, I.; Dr. - Dept. of Genet., Nagasaki Univ., 12^, Sakomoto-machi, NAGASAKI, 



852 Japan 

 a Radiation genetics (embryo, germ cells). Drosophila melanogaster (Diptera) 

 YOSHIOKA, M.; M.D. - Dept. of Anat., Univ. of Tokyo, Hongo, Bunkyo-ku, TOKYO, 113 Japan 

 a Chronological change of the distribution of mitotic cells in lower second molar tooth germ. 



Mouse 

 b Chronological change of the distribution of cell death in lower molar tooth germs. Mouse 



96 



