A) DNA is single stranded
B) RNA is double stranded
C) RNA contains uracil
D) RNA is single stranded
E) Both D and E are correct

A) RNA $\rightarrow$ Protein $\rightarrow$ DNA
B) DNA $\rightarrow$ RNA $\rightarrow$ Protein
C) DNA $\rightarrow$ Protein $\rightarrow$ RNA
D) Protein $\rightarrow$ RNA $\rightarrow$ DNA
E) None of the above is correct

A) An amide bond between deoxyribose and a nitrogenous base
B) A glycosidic bond between deoxyribose and a nitrogenous base
C) A phosphodiester bond between 3^! and 5^! hydroxyl groups of adjacent deoxyribose residues
D) A phosphodiester bond between 2^! and 5^! hydroxyl groups of adjacent deoxyribose residues
E) None of the above is correct