You are given two solutions containing different purified dnas. one is from the bacterium p aeruginosa and has a gc composition of 68%. whereas the other is from a mammal and has a cic composition of 40%.
a. you measure the absorbance of light of each solution as a function of increasing temperature. which solution has the higher tm and why?
b. after melting the two solutions, mixing them together, and allowing them to cool, what would you expect to happen?
c. would appreciable amounts of the bacterial dna be found associated in a helix with mammalian dna? explain.

a ratio derived from the equality between two different units that can be used to convert from one unit to the other. information obtained from experiments, sometimes called experimental results. the part of the experiment that is affected by the independent variable.

the right is separation by density .

take the blood which is a good example of a heterogeneous mixture.

blood is a vital liquid in our body, which transports oxygen from the air to our lungs so we can breathe. it is also used to eject wastes, such as carbon dioxide, to bring cells and molecules of the immune system to the tissues, and to spread hormones throughout the body. it corresponds to plasma, red blood cells, white blood cells, platelets and hemoglobins combined.

in medical tests centrifugal force is used to separate the different components of the blood.

in general, the centrifugation will allow to separate and analyze the different components of the blood, to know if the rate of white blood cells in the blood of a patient, for example, is normal, and therefore to know if his system immune is integrity.

under the action of centrifugal force, the solid components in the blood are drawn to the bottom of the tube in which the blood is contained. the centrifugal force then acts as an accelerated settling. it separates plasma from red blood cells and white blood cells.