With regard to the experiment of Figure 9.5, answer the following:
A. Provide possible explanations why some of the DNA is in the supernatant.
B. Plot the results if the radioactivity in the pellet, rather than in the supernatant, had been measured.
C. Why were 32P and S5S chosen as radioisotopes to label the phages?
D. List possible reasons why less than 100% of the phage protein was removed from the bacterial cells during the shearing process.