Question

There are special proteins that help to open up DNA double helix in front of the replication forkThese proteins are (1)DNA ligase (2)DNA topoisomerase I (3)DNA gyrase (4)DNA polymerase I

Answer 1

Answer:

4 is the correct option and answer

Answer 2

Answer:

DNA Gyrase

Explanation:

It is an ATP dependent enzyme that reduces the 'negative supercoiling' of the DNA thereby controlling the stress during replication.