Exploring Leading and Lagging Strands in DNA Replication

What is the primary function of DNA polymerase during DNA replication?

• To synthesize RNA primers

• To unwind the DNA helix

• To break hydrogen bonds between base pairs

• To add nucleotides to the growing DNA strand

What does the term 'anti-parallel' refer to in the context of DNA structure?

• The two strands of DNA run in opposite directions

• The two strands of DNA are identical

• The two strands of DNA are parallel but not connected

• The two strands of DNA are complementary

Which enzyme is responsible for unwinding the DNA helix during replication?

• DNA polymerase

• Topoisomerase

• Helicase

• Ligase

What is the role of helicase in DNA replication?

• To break hydrogen bonds between base pairs

• To synthesize RNA primers

• To add nucleotides to the growing DNA strand

• To join Okazaki fragments

Why is the leading strand synthesized continuously?

• Because it does not require RNA primers

• Because it runs in the 3' to 5' direction

• Because it is synthesized by a different enzyme

• Because it runs in the 5' to 3' direction

What is the function of DNA primase during DNA replication?

• To join Okazaki fragments

• To break hydrogen bonds between base pairs

• To synthesize RNA primers

• To add nucleotides to the growing DNA strand

What are Okazaki fragments?

• Short DNA fragments synthesized on the leading strand

• Short RNA fragments synthesized on the leading strand

• Short DNA fragments synthesized on the lagging strand

• Short RNA fragments synthesized on the lagging strand

Why is the lagging strand synthesized in fragments?

• Because it is synthesized by a different enzyme

• Because it does not require RNA primers

• Because it runs in the 5' to 3' direction

• Because it runs in the 3' to 5' direction

Which enzyme is responsible for joining Okazaki fragments?

• DNA polymerase

• Helicase

• Topoisomerase

• Ligase

What happens to the RNA primers after DNA synthesis is complete?

• They remain in the DNA strand

• They are replaced with DNA

• They are joined by ligase

• They are degraded by helicase