The mouse frizzy (fr) mutation arose on a genetically mixed background and was first described by G.D. Snell of The Jackson Laboratory in 1951. Mice carrying this recessive mutation have curly vibrissae which can be observed as early as one to two...
Rats lacking normal hairy coats were discovered several years ago among our colony of hairy albino rats. The trait was found to be controlled by a recessive allele of a gene we designated shorn (shn), which mapped to distal end of rat chromosome 7....
Parental behavior in animals; Rats -- Physiology; Animal mutation
Rats that are hypotrichotic (lacking normal hair) due to the autosomal recessive
shorn (shn) mutation showed a low survival rate in brother by sister matings in a breeding
colony of SU/Csu rats. The majority of rats died before weaning. Subsequent...
