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Organic Chemistry 2

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Nucleic Acids: Nucleosides and Nucleotides

ORGO2-TMIMOB

Which of the following statements is FALSE?

A

Purines and pyrimidines are two classes of bases found in DNA and RNA.

B

Nitrogen base, a sugar, ​and a phosphate group combine to make a nucleotide.

C

Sugars and nitrogen bases make nucleosides.

D

The phosphate group in the nucleotide is always attached to the 5' carbon of the ribose sugar.

E

DNA has a pentose sugar whereas RNA has a hexose sugar as the basic unit.

F

DNA has sugar with no oxygen in second carbon whereas​ RNA has same sugar but with oxygen in the second carbon.