DNA differs from RNA in that
A) RNA contains thymine whereas DNA contains uracil.
B) base pairing is only possible between strands of DNA.
C) only DNA is present in the cell nucleus.
D) RNA contains pentose sugar residues whereas DNA contains hexose sugar residues.
E) only DNA has an equal number of purines and pyrimidines.

Question

Quizplus · Accepted Answer

DNA has an equal number of purines and pyrimidines due to base pairing (A-T and G-C), whereas RNA does not have this strict pairing rule.

DNA Differs from RNA in That