DNA Replication

Structure: What are the parts of a nucleotide?

• phosphate, sugar, base

• A, T, G, C

• Nucleic Acids

• two base pairs connected

Structure: Which of the following best describes the arrangement of the sides of the DNA molecule

• Bonding

• Alternating

• Anitparallel

• Parallel

Enzymes: The enzyme that unwinds the DNA to prepare for replication

• helicase

• replicase

• polymerase

• synthase

Enzymes: Which enzyme is responsible for adding nucleotides?

• Topoisomerase

• DNA Polymerase

• Ligase

• Primase

Enzymes: Enzyme that connects the DNA to the backbone (glues)

• Ligase

• Polymerase

• Helicase

• Primase

Enzymes: #3 in the photo is what enzyme? Hint: It tells DNA Polymerase where to start.

• Ligase

• Helicase

• Polymerase

• Primase

Phases: Which is the first step?

• DNA Helicase unwinds original DNA strand

• RNA Primase lays down RNA primer for new nucleotide bases.

• DNA polymerase builds new strands by bring in new nucleotide bases.

• Ligase knits together fragments on lagging strand

Phases: Which is the second step?

• DNA Helicase unwinds original DNA strand

• RNA Primase lays down RNA primer for new nucleotide bases.

• DNA polymerase builds new strands by bring in new nucleotide bases.

• Ligase knits together fragments on lagging strand

Phases: Which is the third step?

• DNA Helicase unwinds original DNA strand

• RNA Primase lays down RNA primer for new nucleotide bases.

• DNA polymerase builds new strands by bring in new nucleotide bases.

• Ligase knits together fragments on lagging strand

Phases: Which is the fourth step?

• DNA Helicase unwinds original DNA strand

• RNA Primase lays down RNA primer for new nucleotide bases.

• DNA polymerase builds new strands by bring in new nucleotide bases.

• Ligase knits together fragments on lagging strand