AP BIOLOGY

Detailed explanation-1: -Helicases are enzymes that bind and may even remodel nucleic acid or nucleic acid protein complexes. There are DNA and RNA helicases. DNA helicases are essential during DNA replication because they separate double-stranded DNA into single strands allowing each strand to be copied.

Detailed explanation-2: -Helicases are essential enzymes involved in all aspects of nucleic acid metabolism including DNA replication, repair, recombination, transcription, ribosome biogenesis and RNA processing, translation, and decay.

Detailed explanation-3: -The initiation of DNA replication occurs in two steps. 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.

Detailed explanation-4: -DNA helicase is an enzyme that unwinds the DNA double helix by breaking the hydrogen bonds between the complementary bases.

Detailed explanation-5: -Helicases are enzymes that are responsible for untwisting the double helix at the replication forks, separating the two strands and making them available to serve as templates for DNA replication.