Problem: Which enzyme catalyzes the elongation of a DNA strand in the 5' → 3' direction? A) primase B) DNA ligase C) DNA polymerase IIID) topoisomerase

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DNA Replication Fork: Template DNA is read from the 3' to 5' direction


primase: adds RNA primers to start DNA replication

DNA ligase: combines Okazaki fragments together

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Problem Details

Which enzyme catalyzes the elongation of a DNA strand in the 5' → 3' direction? 

A) primase 

B) DNA ligase 

C) DNA polymerase III

D) topoisomerase