Search results
Results from the WOW.Com Content Network
The California deermouse has very large ears, and its tail is longer than the head and body combined. Including the tail, which is about 117 to 156 mm (4.6 to 6.1 in) long, the mouse ranges in length from 220 to 285 mm (8.7 to 11.2 in). [6] The coat is overall orange, mixed with black and brown hairs.
The time course of spontaneous mutation frequency from middle to late adulthood was measured in four different tissues of the mouse. [8] Mutation frequencies in the cerebellum (90% neurons) and male germ cells were lower than in liver and adipose tissue.
The human germline mutation rate is approximately 0.5×10 −9 per basepair per year. [1] In genetics, the mutation rate is the frequency of new mutations in a single gene, nucleotide sequence, or organism over time. [2] Mutation rates are not constant and are not limited to a single type of mutation; there are many different types of mutations.
HRT Atlas also describes a complete list of human and mouse housekeeping genes and transcripts; Dryad: repository of data underlying scientific publications in the basic and applied biosciences; Edinburgh Mouse Atlas; EPD Eukaryotic Promoter Database; FINDbase (the Frequency of INherited Disorders database)
Mouse mammary tumor virus (MMTV), is a retro virus that has been a known promoter to cause breast tumors once activated. [39] MMTV is a heritable somatic mutagen whose target range is limited. It harbors a regulatory DNA sequence called the long terminal repeat (LTR), which promotes steroid-hormone-inducible transcription.
Perognathinae is a subfamily of rodents consisting of two genera of pocket mice.Most species live in complex burrows within the deserts and grasslands of western North America, They feed mostly on seeds and other plant parts, which they carry in their fur-lined cheek pouches [2] to their burrows.
This further showed that the mutation frequency improved to be 12 times that of X-rays, 36 times that of procarbazine and over 200 times that of spontaneous mutations. When the mutation rate was averaged across all 7 loci, ENU was found to induce mutations at a frequency of one per locus in every 700 gametes. [3]
The dental formula of Chaetodipus californicus is 1.0.1.3 1.0.1.3 × 2 = 20 teeth in total. [4]Its fur is brown on top and tan underneath with distinct white hairs, or spines, near the rump.