Biochemistry – MCQ 61 – Okazaki fragment synthesis

During replication of DNA, which one of the following enzymes polymerizes the Okazaki fragments?
A. DNA Polymerase I
B. DNA Polymerase II
C. DNA Polymerase III
D. RNA Polymerase I

Correct answer : C. DNA Polymerase III

For the synthesis of the lagging strand, first an RNA primer is created. Then DNA polymerase III binds to the RNA primer and adds deoxyribonucleotides as short segments – Okazaki fragments.

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