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It is the most widely used "genetic background" for genetically modified mice for use as models of human disease. They are the most widely used and best-selling mouse strain due to the availability of congenic strains, easy breeding, and robustness. [1] The median lifespan of C57BL/6 mice is 27–29 months and the maximum lifespan is about 36 ...
BALB/c is an albino, laboratory-bred strain of the house mouse from which a number of common substrains are derived. Now over 200 generations from New York in 1920, BALB/c mice are distributed globally, and are among the most widely used inbred strains used in animal experimentation.
The albino laboratory mouse is an iconic model organism for scientific research in a variety of fields An SCID Intermediate coat colour Kept as a pet. The laboratory mouse or lab mouse is a small mammal of the order Rodentia which is bred and used for scientific research or feeders for certain pets.
Mice are good jumpers, climbers, and swimmers, and are generally considered to be thigmotactic, i.e. usually attempt to maintain contact with vertical surfaces. [citation needed] Mice are mostly crepuscular or nocturnal; they are averse to bright lights. The average sleep time of a captive house mouse is reported to be 12.5 hours per day.
The mutation causing SCIDs in mice was discovered by Melvin and Gayle Bosma in 1983 [1] in the CB/17 mouse line. [2] SCIDs occurs in these mice due to a mutation in the gene for protein kinase, DNA activated, catalytic polypeptide (PRKDC), which plays a role in repairing double-stranded DNA breaks.
A nude mouse is a laboratory mouse from a strain with a genetic mutation that causes a deteriorated or absent thymus, resulting in an inhibited immune system due to a greatly reduced number of T cells. The phenotype (main outward appearance) of the mouse is a lack of body hair, which gives it the "nude" nickname.
Bartolomei identified that imprinted genes are regulated by methylated imprinting control regions (ICR). The mouse models developed by Tilghman and Bartolomei helped to identify that it was genetic mutations on H19 that cause Silver–Russell syndrome. Microdeletions on the H19 ICR have been associated with Beckwith–Wiedemann syndrome.
These blastocysts are then implanted into the uterus of female mice, where they develop. The newborn mice will therefore be chimeras: some parts of their bodies result from the original stem cells, other parts from the knocked-out stem cells. Their fur will show patches of white and grey, with white patches derived from the knocked-out stem ...