Both Beta-mercaptoethanol and DTT are needed by RNases for stability, thereby inhibiting RNase activity and preserving mRNA. But which one is better and do they both act in the same way?
"Beta-mercaptoethanol is cheaper and more stable than DTT. For genomic DNA isolation - there is no difference whether you use one or another. But it really matters for techniques such as affinity protein purification, isotermal calorimetry, and so on."
Which one is better to use for DNA extraction, 2 ...