Final answer:
Bacteria use oriC as the specific initiation site for DNA replication during cell cycle and binary fission, ensuring each daughter cell gets a complete copy of the genome.
Step-by-step explanation:
Bacteria use the oriC for replication during the process of DNA replication, which is an essential part of the bacterial cell cycle and binary fission. In bacteria such as E. coli, replication initiates at the oriC, which is a specific nucleotide sequence that serves as the single origin of replication on the bacterial chromosome.
This site is recognized by proteins that facilitate the binding of an enzyme called helicase, which unwinds the DNA and allows replication to proceed bidirectionally. As the bacterial cell prepares to divide via binary fission, the DNA replication starting at oriC ensures that each daughter cell receives an identical copy of the genetic material.
In bacteria, replication begins at a specific nucleotide sequence called the origin of replication, or oriC. This sequence is recognized by proteins that bind to the site. The replication process starts with an enzyme called helicase unwinding the DNA by breaking the hydrogen bonds between the base pairs. This creates Y-shaped structures called replication forks, and replication proceeds bidirectionally from these forks.