TAILIEUCHUNG - Báo cáo sinh học: "Assessment of a Poisson animal model for embryo yield in a simulated multiple ovulation-embryo transfer scheme"

Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí sinh học Journal of Biology đề tài: Assessment of a Poisson animal model for embryo yield in a simulated multiple ovulation-embryo transfer scheme | Genet Sei Evol 1994 26 177-185 Elsevier INRA 177 Original article Synaptonemal complex analysis in goats carrying the 5 15 Robertsonian translocation MEJ Amaral1 w Jorge2 1 Institute de Biociências Departamento de Genética UNESP Campus de Botucatu 18618 000 Botucatu Săo Paulo 2 Instituto de Cĩencias Biológicas Departamento de Biologia Geral Universidad Federal de Minas Gerais 31 270-010 Belo Horizonte Minas Gerais Brasil Received 24 February 1993 accepted 21 February 1994 Summary - Synaptonemal complexes were analysed by electron microscopy in 2 bucks heterozygous for the 5 15 Robertsonian translocation. The cis configuration free homologous 5 and 15 chromosomes on the same side of the 5 15 translocated chromosome was found in all 50 cells examined. This feature is considered a prerequisite for the development of balanced gametes. No association between the sex bivalent and trivalent was observed. meiosis synaptonemal complex trivalent Robertsonian translocation I goat Resume - L analyse du complexe synaptonémique de 2 boucs porteurs de la translocation robertsonienne 5 15. L analyse du complexe synaptonémigue a été effectuee en microscopic électronique chez 2 boucs heterozygotes pour la translocation robertsonienne 5 15. La configuration cis chromosomes homologues 5 et 15 situés du même côté du chromosome-transloqué 5 15 a été trouvée dans les 50 cellules examinees. Cette carac-téristique est considérée comme une condition préalable au développement de gametes équilibrés. Aucune association entre le bivalent sexuel et le trivalent n a été détectée. méiose complexe synaptonémique trivalent translocation robertsonienne I chèvre Correspondence and reprints 1109 Southwest Parkway Apt 1702 College Station TX 77840 USA. 178 MEJ Amaral w Jorge INTRODUCTION Electron microscopic em analysis of synaptonemal complexes SC in the meiotic cells of domestic animals carrying chromosomal aberrations began with the works of Switonski et al 1987 and Gabriel-Robez et al 1986 . .

• Báo cáo khoa học
• Báo cáo sinh học hay
• cách trình bày báo cáo
• báo cáo sinh học
• công trình nghiên cứu sinh học
• tài liệu về sinh học