A Biochemist Isolates and Purifies Various Molecules Needed for DNA

question 57

Multiple Choice

A biochemist isolates and purifies various molecules needed for DNA replication. When she adds some DNA, replication occurs, but each DNA molecule consists of a normal strand paired with numerous segments of DNA a few hundred nucleotides long. What has she probably left out of the mixture?

• A)DNA polymerase
• B)DNA ligase
• C)nucleotides
• D)Okazaki fragments
• E)primase

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