Question

......... is ATP dependent unwinding enzyme which promotes separation of the two parental strands disrupting hydrogen bonds​

Answer 1

$\huge \mathfrak{ \red{ \underline{⬗ \: Answer}}}$

Helicase

Answer 2

• Helicases unwind the two strands of parental DNA  ahead of the replication fork.
• The unwound DNA strands are then stabilized by single-stranded DNA-binding proteins so that they can serve as templates for new DNA synthesis.
• The hydrolysis of ATP ( Adenine Triphosphate) is coupled to the unwinding of DNA strands.
• It facilitates the action of breaking the hydrogen bond between the double-stranded DNA helix structure.
• Hence, the answer to the question would be Helicase.