To determine the isoelectric point of a protein, first establish that a gel: a) contains a denaturing detergent that can distribute uniform negative charges over the protein surface. b) exhibits a stable ph gradient when ampholytes become distributed in an electric field. c) is washed with an antibody specific to the protein of interest. d) neutralizes all ionic groups on a protein by titrating them with strong bases. e) relates the unknown protein to a series of protein markers with known molecular weights.

10. according to the law of conservation of mass, how does the mass of the products in a chemical reaction compare to the mass of the reactants?

Lab reagent, hypothesis test.a reference solution used as a lab reagent is purported to have a concentration of 5 mg/dl. six samples are taken from this solution and the following concentrations are recorded: (5.32, 4.88, 5.10, 4.73, 5.15, 4.75) mg/dl.these six measurements are assumed to be an srs of all possible measurements from solution.they are also assumed to have a standard deviation of 0.2, a normal distributin, and a mean concentration equal to the true concentration of the solution.carry out a significance test to determine whether these six measurements provide reliable evidence that the true concentration of the solution is actually not 5 mg/dl.

What best discribes the relationship between wavelength and frequency in a electromagnetic wave