For checking one or two bands, much of the usual MADGE track length remains unused. One general approach to single nucleotide polymorphism (SNP) calling is to use allele-specific PCR such as amplification refractory mutation system (ARMS): one simple robust format uses two separate allele-specific amplifications, one testing for each allele, with a control (unlinked) am-plicon also included in each reaction as a positive control. In this case, it is easiest to load one gel and recombine the two tracks of information about a given template into one ''virtual'' software track. This can be readily achieved by locating a second well halfway along the ''original'' MADGE track, giving two concatenated tracks of 12.25 mm (for 2 x 4 diagonal MADGE) in a 192-well gel.
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The use of dumbbells gives you a much more comprehensive strengthening effect because the workout engages your stabilizer muscles, in addition to the muscle you may be pin-pointing. Without all of the belts and artificial stabilizers of a machine, you also engage your core muscles, which are your body's natural stabilizers.