DNA replication Part 4

Step wise DNA replication is explained, Answer me following Question
1. Proteins required in Initiation of Polymerisation of DNA?
2. Which Protein Prevent Hybridization of Two strands as helicase have melted?
3. What is function of DAM Methyltransferase?

Link to Video: 
Semester: 
5
Unit: 
2
Subject: 
MICROBIOLOGY
Paper: 
1