Figure 4From: Experimental optimization of probe length to increase the sequence specificity of high-density oligonucleotide microarraysThe effects of the mismatch position on the PM/MM ratio. The effects of the mismatch position of representative 6 probe lengths on the ratios of signal intensity of PM to those of cognate MM random probes in the target concentration of 1.4 pM. The x-axis denotes the mismatch position as position 1 indicates the first base at the 3' terminal end, which was tethered to the surface via the linker moiety. Standard deviations are given in additional file 4.Back to article page