nucleotide h bonds

Question 1

H bonds between A and T

Answer 1

C6 amino group of A to C4 ketone of T
N1 nitrogen of A to N3 nitrogen of T

Question 2

H bonds between G and C

Answer 2

C6 ketone of G to C4 amino group of C
N1 nitrogen of G to N3 nitrogen of C
C2 amino group of G to C2 ketone of C