Record Display for the EPA National Library Catalog

RECORD NUMBER: 36 OF 50

OLS Field Name OLS Field Data
Main Title SCE and Meitotic Crossover Exchange in Germ Cells.
Author Allen, James W. ;
CORP Author Health Effects Research Lab., Research Triangle Park, NC.
Year Published 1983
Report Number EPA-600/D-83-090;
Stock Number PB83-242925
Additional Subjects Germ cells ; Toxicology ; Mice ; Reproductive system ; In vivo analysis ; Chromosomes ; Mutagenesis ; Carcinogenesis ; SCE induction ; Crossing over
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB83-242925 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 31p
Abstract
Mouse spermatogonial cells can be evaluated for SCE induction after in vivo exposure to chemical mutagens and carcinogens. In this system, cyclophosphamide and ethyl carbamate have been shown to cause significant increases in SCE which, however, tend to be lower in magnitude than those expressed by various somatic tissues. Armenian hamster meiotic chromosomes can be evaluated for normal levels of SCE, and both quantitative and qualitative aspects of crossover exchange. Alternate crossover exchange patterns appear directly related to chiasmata in primary spermatocyte sex bivalents, and also are detectable in sex chromosomes from secondary spermatocytes. Thus, high resolution chromatid exchange analysis is versatile in its application for studies of various forms of normal and abnormal genetic recombination processes in mammalian germ cells.