DNA Replication Quiz

What is the primary function of DNA polymerases?

• To unwind the DNA double helix

• To remove RNA primers

• To ligate DNA fragments

• To synthesize new DNA strands

Which strand is synthesized continuously during DNA replication?

• Okazaki strand

• Leading strand

• Lagging strand

• Template strand

What is the role of DNA primase in replication?

• To create RNA primers

• To ligate DNA fragments

• To proofread DNA

• To synthesize DNA

Which enzyme is responsible for replacing RNA primers with DNA?

• DNA polymerase III

• DNA polymerase I

• DNA ligase

• DNA helicase

What is the function of DNA ligase?

• To proofread DNA

• To unwind DNA

• To join Okazaki fragments

• To synthesize RNA primers

Which of the following is NOT a function of DNA polymerase III?

• Extend DNA from a primer

• Synthesize new DNA strands

• Proofread DNA

• Replace RNA primers

What is the main difference between the leading and lagging strands?

• Length of the strands

• Enzymes involved

• Type of nucleotides used

• Direction of synthesis

Which enzyme is primarily responsible for proofreading DNA?

• DNA polymerase III

• DNA ligase

• DNA polymerase I

• DNA primase

What are Okazaki fragments?

• Short RNA segments on the lagging strand

• Short DNA segments on the leading strand

• Long continuous DNA segments

• Short DNA segments on the lagging strand

Which of the following enzymes unwinds the DNA double helix?

• DNA primase

• DNA polymerase I

• DNA helicase

• DNA ligase