Suppose a New Species of Bacterium Is Discovered

question 40

Multiple Choice

Suppose a new species of bacterium is discovered.It contains a form of DNA pol III that can add new nucleotides to either the 5' end or the 3' end of an existing strand.All other properties of the enzyme remain unchanged.How would DNA replication in these bacteria differ from normal replication?

• A)Both new strands could be synthesized continuously like the leading strand.
• B)The same polymerase molecule could synthesize both strands at the same time.
• C)Helicase would no longer be required for replication.
• D)DNA gyrase would no longer be required for replication.

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