Multiple choice

Various enzymes are involved in the formation of the DNA fragment. Which among the following enzymes is responsible for synthesising Okazaki fragments from 5’ to 3'?

  1. Primase

  2. DNA polymerase δ

  3. DNA ligase

  4. Flap endonuclease 1

  5. Dna2 endonuclease
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A Correct answer
Explanation

Primase adds RNA primers onto the lagging strand, which allows synthesis of Okazaki fragments from 5’ to 3’. However, Primase creates RNA primers at a much lower rate than that at which DNA polymerase synthesizes DNA on the leading strand.

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