Mathes AP DNA Replication Interactive

What is the role of DNA helicase in the initiation of DNA replication?

• Creates RNA primers

• Unwinds the DNA double helix

• Synthesizes new DNA strands

• Joins Okazaki fragments

Which enzyme is responsible for synthesizing a short RNA primer during DNA replication?

• DNA polymerase

• Primase

• Helicase

• Ligase

What is the function of the sliding clamp in DNA replication?

• It unwinds the DNA double helix

• It joins Okazaki fragments

• It helps DNA polymerase to stay attached to the DNA

• It synthesizes RNA primers

How are Okazaki fragments connected during DNA replication?

• By DNA helicase

• By primase

• By DNA polymerase

• By DNA ligase

What describes the semi-conservative nature of DNA replication?

• New DNA molecules are made entirely of RNA

• Each new DNA molecule consists of one parent strand and one new strand

• Each new DNA molecule consists of two new strands

• New DNA molecules are exact copies without the parent DNA