DNA replication

Which of the following correctly describes the base pairing rules in a DNA molecule?

• A pairs with G, C pairs with T

• A pairs with T, C pairs with G

What is the primary function of the enzyme Helicase during DNA replication?

• To create RNA primers for DNA synthesis.

• To separate the two strands of the DNA double helix.

• To seal the fragments of DNA together.

In which direction does DNA polymerase add new DNA bases to a growing strand?

• From the 3' prime end to the 5' prime end.

• From the 5' prime end to the 3' prime end.

• Randomly, depending on the available bases.

What are the small, discontinuous fragments of DNA synthesized on the lagging strand called?

• RNA primers

• Okazaki fragments

• Leading strands

What enzyme seals the backbone of the DNA strands

• Ligase

• polymerase

• helicase

Why is DNA replication considered Semi-conservative?

• because both strands are new.

• it uses only one original strand.

• because each new DNA molecule contains one original strand and one new strand.