Biochemistry of Nucleic Acids Lecture Quiz

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13 Questions

What are the two main classes of nucleic acids?

Ribonucleic acid (RNA) and deoxyribonucleic acid (DNA)

What does DNA encode?

An organism’s entire hereditary information

What is the main information-carrying molecule of the cell?

Nucleic acids

Which type of sugar is present in RNA?

D-ribose

What determines the inherited characteristics of every living thing?

Nucleic acids

What links the sugars in both RNA and DNA?

Phosphoric acid

What is the name of a compound containing a base bonded to D-ribose or to 2-deoxy-D-ribose?

Nucleoside

In which type of linkage are the purines and pyrimidines bonded to the anomeric carbon of the furanose ring?

-glycosidic linkage

What is the name of a nucleoside with either the 5- or 3- -OH group bonded in an ester linkage to phosphoric acid?

Nucleotide

What do the rules of base pairing state about the pairing of thymine (T) and guanine (G)?

T doesn't pair with G

What type of bonds are formed between adenine (A) and thymine (T), and between cytosine (C) and guanine (G)?

Hydrogen bonds

Which type of acid can form an anhydride, allowing nucleotides to exist as monophosphates, diphosphates, and triphosphates?

Phosphoric acid

What type of bonds join the 3´-OH group of one nucleotide to the 5´-OH group of the next nucleotide in nucleic acids?

Phosphodiester bonds

Test your knowledge about the biochemistry of nucleic acids, including their chemical composition and role as information-carrying molecules in cells. This quiz covers topics such as phosphoric acid, sugars, and organic bases.

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