A) Base
B) Sugar
C) Sugar and base
D) Phosphate
Correct Answer: C
Solution :
DNA has deoxy ribose pentose sugar and four nitrogenous bases i.e., adenine [A], guanine [G], both are purines and cytosine [C], thymine [T] are pyrimidines. While RNA has ribose pentose sugar and four nitrogenous bases as in DNA except uracil [U] in place of thymine.
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