نتایج جستجو برای: genetic manipulation
تعداد نتایج: 670859 فیلتر نتایج به سال:
Transgenic mice have been produced that either lack or overproduce neuroregulatory substances implicated in the control of food intake and body weight. Are such mice useful models for understanding the underlying etiology of obesity in humans?
tan res
Finding a cell that reprograms in a nonstochastic manner without genetic manipulation has proven elusive. In this issue, Guo et al. report the identification of a cell defined by an ultrafast cycle whose progeny reprogram in a synchronous and rapid manner.
A novel, site-specific, DNA backbone S-modification (phosphorothioation) has been discovered, but its in vivo function(s) have remained obscure. Here, we report that the enteropathogenic Salmonella enterica serovar Cerro 87, which possesses S-modified DNA, restricts DNA isolated from Escherichia coli, while protecting its own DNA by site-specific phosphorothioation. A cloned 15-kb gene cluster ...
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