The image below shows one of the earliest stages of DNA replication. What enzyme is responsible for breaking the hydrogen bonds between the two strands and unwinding the helix?

The enzyme responsible for breaking the hydrogen bonds between the two strands of DNA and unwinding the helix during replication is called helicase. It separates the two strands, allowing each strand to serve as a template for the synthesis of new complementary strands. This unwinding is essential for the replication process to occur efficiently.