Which base pair combinations can form when nitrogenous bases are present in their rare imino or enol states?
A) A:T
B) C:G
C) A:C
D) A:T and C:G
E) C:G and A:C

Question

Quizplus · Accepted Answer

When nitrogenous bases are present in their rare imino or enol states, they can form non-canonical base pairs, such as A:C. The other base pair combinations (A:T, C:G, A:T and C:G, C:G and A:C) occur in the normal canonical base pairing states.

Which Base Pair Combinations Can Form When Nitrogenous Bases Are