What is the function of dna ligase?

What is the function of dna ligase ?

  1. Unwinding (denaturation) of dsDNA to provide an ssDNA template

2) Seals the single strand nick between the nascent chain and Okazaki fragments on lagging strand

  1. Initiation of DNA synthesis and elongation

  2. Initiates synthesis of RNA primers

exp:

2) Seals the single strand nick between the nascent chain and Okazaki fragments on lagging strand