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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?

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

What is the function of DNA ligase during DNA replication?

To connect Okazaki fragments (D) Signup and view all the answers

What is a key feature of DNA replication in prokaryotes?

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

Which statement is true regarding eukaryotic DNA replication?

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) Signup and view all the answers

What distinguishes the replication fork during DNA replication?

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

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

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

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

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

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