1. Introduction to Biochemistry

Which sugar is found in the backbone of DNA?

In nucleic acid synthesis, which enzyme catalyzes the formation of phosphodiester bonds to join individual nucleotides into a growing DNA or RNA strand?

Which sugar is found in DNA?

In DNA replication, what enzyme unwinds or “unzips” the parental double-stranded DNA at the replication fork?

Which of the following best describes the structural difference between ATP and dATP?

In DNA replication, which enzyme is responsible for adding new nucleotides to the growing DNA strand in the $5\to 3$ direction?

In the context of nucleic acids, which type of biomolecule is ATP (adenosine triphosphate) most like in overall structure?

Which organic molecule carries the hereditary information for cells?

In the context of nucleic acids, which statement best describes ATP (adenosine triphosphate)?

Which of the following best describes the difference between NAD$^+$ and NADH?

Which of the following substances is classified as a nucleic acid?

In the context of nucleic acid metabolism, what happens to NADH when it is oxidized?

Which of the following descriptions best fits the class of molecules known as nucleotides?

Which of the following best describes the substrates digested by nucleosidase and phosphatase enzymes during nucleic acid catabolism?

In nucleic acids, what is the monomer called if it lacks a phosphate group?