AP DNA Structure and Replication

Which of the following is NOT found in DNA?

• phosphate

• ribose

• thymine

• guanine

The type of bond that holds the backbone together

• hydrogen

• covalent

• phosphodiester

• ionic

The number of bonds that hold guanine and cytosine together.

• 1

• 2

• 3

• 4

The DNA strands are

• antiparallel to each other

• parallel to each other

• identical to each other

• complementary to each other

The monomers of DNA are

• amino acids

• monosaccharides

• nucleic acids

• fatty acids and glycerol

Which of the following have a double ring structure?

• purines

• pyrimidines

Which of the following are purines?

• uracil

• cytosine

• guanine

• thymine

Which of the following describes DNA replication?

• conservative

• semi-conservative

• disconservative

• uniconservative

Unwinds and unzips the DNA

• primase

• topoisomerase

• DNA helicase

• DNA ligase

• DNA polymerase

Adds an RNA primer to the DNA strand

• primase

• topoisomerase

• DNA helicase

• DNA ligase

• DNA polymerase