Discussion of all aspects of biological molecules, biochemical processes and laboratory procedures in the field.
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I have seen marks denoting the number of nucleotides along the gel which actually denote the molecular weight. But , do the polynucleotides with same number of nucleotides have same molecular wt.always? I think , they would not , as the proportions of A ,T ,G & C would not be the same always.Thus , they will get separated during electrophoresis . So, how can we have a common mark denoting the nucleotide number for such polynucleotides as they would be apart from each other . Can we have only sizewise separation of molecules in electrophoresis? If yes , then ,I think , such polynucleotides may have same mark as the size-difference between them seems to be lesser.
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