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DNA Replication: The Details Read pages 219 – 222 in your text, Nelson Biology 12, and answer the following questions. 1. What role does the enzyme helicase play in DNA replication? 2. What does the enzyme DNA polymerase III do? 3. What is the difference between the leading strand and the lagging strand? Which strand is made in pieces? 4. What is the name of these pieces? What is the name of the enzyme that attaches the little pieces together at the end? 5. Why does one strand of DNA have to be replicated in pieces? In other words, why can’t both strands be synthesized continuously? 6. Look at the summary of DNA replication on page 222. Which two enzymes function as proofreaders to make sure there are no mutations? DNA Replication: The Details Read pages 219 – 222 in your text, Nelson Biology 12, and answer the following questions. 1. What role does the enzyme helicase play in DNA replication? 2. What does the enzyme DNA polymerase III do? 3. What is the difference between the leading strand and the lagging strand? Which strand is made in pieces? 4. What is the name of these pieces? What is the name of the enzyme that attaches the little pieces together at the end? 5. Why does one strand of DNA have to be replicated in pieces? In other words, why can’t both strands be synthesized continuously? 6. Look at the summary of DNA replication on page 222. Which two enzymes function as proofreaders to make sure there are no mutations?