1) Represent graphically the relation between melting temperature and the G-C content of DNA.
a) Construct relations for dependence of melting temperature of a 30 bp DNA duplex on the G-C content. For series of the DNA chains where we vary the number of G-C pairs, plot how Tm changes as a function of f, the fraction of G-C pairs, ranging from 0.33 (i.e. 10 G-C pairs) to 0.67 (i.e 30 G-C) pairs.
b) From observation, list other factors other than G-C content seem to control Tm?
c) Supposing we have two actin filament 10 microns long linked by 10 myosin motors, how long would be needed to move two filaments past each other 5 microns? How much energy is needed?