Recent content by Troubled Man

If the average molecular weight of a deoxynucleotide monophosphate (dNMP) or base is 330, hence base pair is 660, how much genomic DNA would a Drosophila (fruit fly) cell contain? The haploid Drosophila genome contains 1.4 * 108 base pairs, although the cell is diploid. How much DNA would 1...

Perchloric acid (PCA) is used to precipitate and remove proteins from many biological samples eg serum. Perchloric acid is a liquid with a molecular weight of 100 and a density of 1.21 g/ml. How much PCA liquid is required to make up 100 ml of a 0.8 M PCA solution?

A solution requires 250 ml of a 7.5 % (w/v) solution of tri sodium citrate. The only citrate you have available is the dihydrate, C6H5O7Na3.2H2O with a formula weight of 294.1. How much would you have to weigh out to make up this solution?

A reaction has been designed to be carried out in a 2ml total volume. It requires a final NAD concentration of 3mM. If the protocol allows 60 µl for the NAD addition, what concentration would you make up the stock solution?