## 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
Linkage studies ofwavyin the Norway rat,Rattus norvegicus
โ Scribed by R. Robinson
- Publisher
- Springer Netherlands
- Year
- 1988
- Tongue
- English
- Weight
- 98 KB
- Volume
- 77
- Category
- Article
- ISSN
- 0016-6707
No coin nor oath required. For personal study only.
โฆ Synopsis
The gene for wavy coat (wv) is shown to assort independently of the albino (c), brown (b), hooded pattern (h) and pink-eyed dilution (p) genes. The c and p genes, known to be in linkage group I, were observed to show a recombination value of 19.9 _+ 3.3 per cent.
๐ SIMILAR VOLUMES
## In 1926, Crozier and Pincus first reported that 2-week-old rats placed headdown on an inclined plane orient in a head-up direction; this response is called negative geotaxis. In Experiment 1, we replicated this finding by testing 12-to 14-day-old rats on an inclined plane covered with wire mesh
Man and the great majority of mammals have the common XX/XY sex chromosome mechanism. However, in addition to species with complex sexchromosome systems, individuals with deviating sex chromosome constitutions have been reported in man and in at least 16 mammalian species with the normal XX/XY mecha