Question

1. In order to demonstrate that DNA (and not protein) was thegenetic material, bacteriophage T4 were labeled with either 32P or35S and allowed to infect E. coli.

a. What does 32 P label?

b. What does 35S label?

c. The bacteriophage that were produced fromthis infection retained which label 32P or 35S?

d. How did this experiment show that DNA was the geneticmaterial?

2. Briefly, discuss the pros and cons of having a nucleoid (asbacteria do) versus a double nuclear membranesurrounding the DNA (as in eukaryotes).

3. Histones and other DNA binding proteins usually have a netpositive charge. Explain