DNA Replication

Which sequence of DNA bases would pair with this DNA strand?

CAT TCA CTG

• ATG TGA CAG

• TAC ACT GTC

• GTA AGT GAC

• CAT TCA CTG

Which of the following choices is the monomer or building block of DNA?

• amino acids

• nucleotides

• fatty acids

• polysaccharides

Which enzyme unwinds and unzips the DNA to prepare for replication?

• helicase

• ligase

• DNA polymerase

• primase

What is the correct order of DNA replication?

• 3, 4, 2, 1

• 3, 1, 4, 2

• 2, 1, 4, 3

• 3, 4, 1, 2

What process is labeled "A," in which one double strand of DNA makes two identical strands of DNA?

• Replication

• Translation

• Transcription

In what phase of the cell cycle does DNA replication take place?

• G1
• S
• G2
• M

Which enzyme is responsible for adding nucleotides?

• Helicase

• DNA Polymerase

• Ligase

• Primase

The process of DNA replication is called semi-conservative because it creates what?

• none of these

• two DNA molecules, one with two original strands and one with two new strands

• two identical molecules, each with two new strands

• two identical molecules, each with one original strand and one new strand.

Based on the diagram, how many origins of replication are represented?

• 1
• 2
• 3
• 4

Place the following steps of DNA replication in order

1. Ligase seals the newly synthesized DNA strands

2. Helicase untiwsts and unzips the double helix

3. Helicase breaks hydrogen bonds between bases (A, T, C, G)

4. DNA polymerase III adds free bases (A, T, C, G)

• 1, 2, 3, 4

• 3, 4, 2, 1

• 3, 2, 4, 1

• 2, 3, 4, 1