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A descriptive study of social development in family groups of rats (Rattus norvegicus)

โœ Scribed by Drews, David R.; Forand, Kenneth J.; Gipe, Todd G.; Chellel, Lynn D.; Gay, Robert L.

Book ID
125410329
Publisher
Springer - Psychonomic Society
Year
1982
Weight
975 KB
Volume
19
Category
Article
ISSN
0090-5054

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A comparative study of the chromosomes o
A comparative study of the chromosomes of the Norway rat (Rattus norvegicus ERXL.) and the black rat (Rattus rattus L.)
โœ G. Pincus ๐Ÿ“‚ Article ๐Ÿ“… 1927 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 899 KB

## Abstract By the use of a satisfactory technique, excellently preserved spermatogenetic tissue was had both for Rattus rattus and Rattus norvegicus. The careful examination of twelve spermatogonial cells of the former species and of twenty in the latter species shows that R. rattus has forty dipl