In DNA replication, which enzyme unwinds ("unzips") the double helix by breaking hydrogen bonds to prepare the DNA template strands for replication?

Multiple origins of replication on the DNA molecules of eukaryotic cells serve to:

During DNA replication, which protein stabilizes the unwound DNA strands by binding to single-stranded DNA and preventing reannealing?

During the eukaryotic cell cycle, when does DNA replication occur?

In the context of DNA replication, what type of biological molecule is DNA helicase?

In the overview of DNA replication, which enzyme is primarily responsible for unzipping (unwinding) the DNA double helix at the replication fork to prepare for replication?

In the overview of DNA replication, what is the primary role of helicase?

In the process of DNA replication, what is the primary role of DNA polymerase?

During DNA replication, which enzyme initiates DNA synthesis by creating a short RNA segment (primer) that provides a free $3\prime OH$ group for DNA polymerase?