Multiple choice

Which enzyme joins Okazaki fragments together?

  1. Helicase

  2. DNA Ligase

  3. DNA polymerase

  4. DNA primase

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

DNA Ligase is the enzyme responsible for sealing the nicks between Okazaki fragments on the lagging strand. Helicase unwinds the DNA, DNA polymerase synthesizes the new strand, and primase creates the RNA primer.