The lab you have joined is one of those math-averse labs that makes primer stocks by just adding TE buffer to the dried pellet in the tube when it arrives, based on the mass of the primer, so that the concentration of all stock solutions is 1 ug/uL (microgram per microliter). You were taught to use primer stocks in uM concentrations and have worked hard to master the accompanying math.Select from the options below why it is preferred to use molar concentrations for your primer stock solutions.

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