Question

What causes the DNA to split?

Answer 1

Step-by-step explanation:

Helicase (yellow) unwinds the double helix.

First, a so-called initiator protein unwinds a short stretch of the DNA double helix.

Then, a protein known as helicase attaches to and breaks apart the hydrogen bonds between the bases on the DNA strands, thereby pulling apart the two strands.

Hope this helps!

Answer 2

The DNA enzyme; Helicase

Step-by-step explanation:

DNA chains are "unzipped" by the enzyme Helicase; which requires energy to function