Which of the following statements about DNA and RNA is true?
A) DNA has uracil, whereas RNA has thymine.
B) DNA usually has one polynucleotide strand, whereas RNA usually has two strands.
C) DNA contains pentose sugars, whereas RNA contains hexose sugars.
D) DNA is a polymer, whereas RNA is a monomer.
E) In DNA, A pairs with T, whereas in RNA, A pairs with U.

Question

Quizplus · Accepted Answer

In DNA, the nitrogenous base adenine (A) pairs with thymine (T), whereas in RNA, A pairs with uracil (U). The other options are incorrect: A) DNA has thymine, while RNA has uracil. B) DNA usually has two polynucleotide strands that form a double helix, while RNA usually has one strand. C) Both DNA and RNA contain pentose sugars, but the sugar in RNA is ribose, while the sugar in DNA is deoxyribose. D) Both DNA and RNA are polymers made up of monomers called nucleotides.

Which of the Following Statements About DNA and RNA Is