47.
A:
the pyridine ring loses electrons (and a hydrogen)
B:
the pyridine ring gains electrons (and a hydrogen)
C:
the adenine ring lose electrons
D:
the adenine ring lose electrons.
The answer is: B
Biotechnology Engineering (M.Phil./Ph.D.) 2014 Panjab University Entrance Exam With Answers
Practice Mode:
47.
The answer is: B