Week 4 - Day 3

Today, we prepared solutions in order to try to replicate Bertins experiment in which increasing concentrations of Mg are added to the nucleosome solution to see how the nucleosome aggregraates at the different concentrations.First we made a 10ml of a 1M solution of Magnesium chloride. Then we prepared the nucleosome solution by adding 67.2μL of the concentrated nucleosome to 10μL of 1M tris and then diluted the solution to 100μL with DI water. It is this solution we will add the magnesium chloride to while testing the concentration of NCP left in the solution after each addition using the UV based spectrometer shown above