In addition to the canonical base pairing, there often exists non-canonical base pairing such as _________ and ________ base paring.
A. G, U
B. G, C
C. U, C
D. A, C
Answer:A
In addition to the canonical base pairing, there often exists non-canonical base pairing such as _________ and ________ base paring.
A. G, U B. G, C C. U, C D. A, C
Explanation: There often exists non-canonical base pairing such as G and U base paring. The G–U base pair is less stable and normally occurs within a double-strand helix surrounded by Watson–Crick base pairs. Finally, the tertiary structure is the three-dimensional arrangement of bases of the RNA molecule.