DNA Replication Quiz

What is the primary purpose of DNA replication?

• To repair damaged DNA

• To synthesize proteins

• To ensure each daughter cell receives an identical copy of DNA

• To create energy for the cell

During which phase of the cell cycle does DNA replication occur?

• S phase

• G1 phase

• M phase

• G2 phase

Which enzyme is responsible for adding nucleotides during DNA replication?

• DNA helicase

• DNA ligase

• DNA polymerase

• DNA primase

What are Okazaki fragments?

• Short DNA sequences on the leading strand

• Short DNA sequences on the lagging strand

• RNA primers used in replication

• Enzymes that unwind DNA

Which enzyme removes RNA primers during DNA replication?

• DNA topoisomerase

• DNA polymerase I

• DNA helicase

• DNA ligase

What is the role of DNA ligase in DNA replication?

• To seal breaks between Okazaki fragments

• To synthesize RNA primers

• To proofread the DNA sequence

• To unwind the DNA helix

In eukaryotes, how many major types of DNA polymerases are involved in replication?

• 10

• 5

• 14

• 2

What is the direction of DNA synthesis during replication?

• Both directions

• 5' to 3'

• 3' to 5'

• Random direction

Which of the following is a feature of DNA replication in prokaryotes?

• It involves multiple types of polymerases

• It originates at a single origin of replication

• It is unidirectional

• It occurs in the nucleus

What is the function of SSB proteins during DNA replication?

• To add nucleotides

• To remove RNA primers

• To proofread DNA

• To stabilize unwound DNA