The following questions are based on the 15 molecules illustrated in Figure 5.8. Each molecule may be used once, more than once, or not at all. Figure 5.8 -Which of the following molecules could be joined together by a phosphodiester type of covalent bond?
A) 3 and 4 B) 3 and 8 C) 6 and 15 D) 11 and 12 E) 11 and 13