Molecular Biology DNA Replication Quiz
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Questions and Answers

Which enzyme is primarily responsible for unwinding the DNA double helix during replication in eukaryotes?

  • Primase
  • Helicase (correct)
  • DNA ligase
  • Polymerase

During DNA replication, which of the following is necessary for starting the synthesis of a new DNA strand?

  • Nuclease
  • Topoisomerase
  • DNA polymerase
  • RNA primer (correct)

What differentiates DNA replication in prokaryotes from eukaryotes?

  • Eukaryotic DNA is circular.
  • Prokaryotic replication occurs in the cytoplasm. (correct)
  • Eukaryotic replication is faster than prokaryotic replication.
  • Prokaryotes have multiple origins of replication.

Which of the following correctly describes the directionality of DNA synthesis during replication?

<p>Synthesis occurs in the 5' to 3' direction. (A)</p> Signup and view all the answers

What is the function of DNA ligase during DNA replication?

<p>To connect Okazaki fragments (D)</p> Signup and view all the answers

What is a key feature of DNA replication in prokaryotes?

<p>It typically occurs at a single origin of replication. (B)</p> Signup and view all the answers

Which statement is true regarding eukaryotic DNA replication?

<p>Eukaryotic cells are only capable of replication during the S phase of the cell cycle. (C), The replication process is slower compared to prokaryotes. (D)</p> Signup and view all the answers

What distinguishes the replication fork during DNA replication?

<p>It leads to the synthesis of both leading and lagging strands. (C)</p> Signup and view all the answers

What role does the origin of replication play in DNA replication?

<p>It is the site where replication enzymes assemble. (C)</p> Signup and view all the answers

How do eukaryotic cells manage the more complex structure of their DNA during replication?

<p>By having multiple replication forks simultaneously. (C)</p> Signup and view all the answers

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