Phosphofructokinase 2 / fructose bisphosphatase 2 catalyze important steps in glycolysis. Which of the following is TRUE?

Franklin’s Photo 51 showed 

Topoisomerase binds to the phosphate backbone DNA via

Pyruvate kinase is activated by fructose-1,6-bisphosphate. This is because

The major and minor groove result from

The following picture shows

Which protein modification involves E1, E2, and a ligating enzyme?

Linus Pauling used a sheet of paper to solve the structure of the

Negatively supercoiled DNA

Protein structure is determined by all of the following EXCEPT