DNA Quiz 2

Which of the following statements is FALSE about DNA replication?

• DNA replication is semiconservative.

• DNA replication results in two identical double-stranded DNA molecules.

• DNA replication requires RNA primers.

• DNA polymerase can add new nucleotides to both 5' and 3' ends.

During DNA replication, the leading strand is synthesized:

• Discontinuously in the 5' to 3' direction

• Continuously in the 5' to 3' direction

• Discontinuously in the 3' to 5' direction

• Continuously in the 3' to 5' direction

Which type of bond holds the two DNA strands together in a double helix?

• Covalent bonds between nitrogenous bases

• Hydrogen bonds between nitrogenous bases

• Ionic bonds between phosphate groups

• Peptide bonds between sugars

In prokaryotic DNA replication, which enzyme removes the RNA primers?

• DNA polymerase I

• DNA polymerase III

• Primase

• Helicase

The enzyme telomerase is most active in:

• Nerve cells

• Muscle cells

• Cancer cells

• Red blood cells