Posted: July 25th, 2017

In a Watson-Crick base pair for an A-T, how would the hydrogen bonds change if the adenine base were in its imine tautomer?

In a Watson-Crick base pair for an A-T, how would the hydrogen bonds
change if the adenine base were in its imine tautomer?
A. The extracyclic imino group would become a hydrogen bond acceptor.
B. The three hydrogen bonds to thymidine would break.
C. The methyl group of adenine would make hydrophobic contact with
thymine
D. The two hydrogen bonds to thymidine would break.
E. The keto oxygen would become a hydrogen bond donor as a hydroxyl.
F. both A and D
G. both A and E