Why do origins of replication in various bacteria have conserved DNA consensus sequences?
A) Fewer mutations in the DNA occur at the very beginning of replication at the origin, hence why they are conserved as consensus sequences.
B) It is more efficient to use the same sequence multiple times in different genomes than to change it.
C) The consensus sequence allows the origin to wrap into a circle and recruit replication initiation proteins.
D) Origins need to be recognized by replication initiation proteins to open up their AT- rich regions.
E) Consensus sequences are found throughout bacterial genomes and so would be found at the origin as well.

Question

Quizplus · Accepted Answer

The conserved DNA consensus sequences at origins of replication are crucial because they are recognized by replication initiation proteins, which bind to these sequences to initiate the replication process, particularly at AT-rich regions that are easier to unwind.

Why Do Origins of Replication in Various Bacteria Have Conserved