Which Statement Regarding the Regulation of Initiation in E

question 47

Multiple Choice

Which statement regarding the regulation of initiation in E. coli is CORRECT?

• A) DnaA binds its consensus sequence at oriC only when the sequence is fully acetylated.
• B) After replication, the DNA at oriC is hemi-acetylated and in this state it cannot bind DnaA.
• C) After replication the DNA at oriC is hemi-methylated, and in this state it binds DnaA with high affinity.
• D) The binding affinity of DnaA for its binding sites in oriC is dependent only on methylation of DNA.
• E) DnaA binds its consensus sequence at oriC only when the sequence is fully methylated.

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Definitions:

Inductive Reactance

A property of an electrical circuit element that opposes the change in current flow, especially notable in coils or inductors, affected by frequency and inductance.

Total Current

The overall flow of electric charge through a circuit, determined by the sum of all individual current paths within the circuit.

Parallel Circuit

An electric circuit in which the same voltage is applied across multiple paths, allowing current to divide among the paths.

Inductive Reactance

The opposition to the change in current flow in a circuit element caused by its inductance, affecting the phase angle between voltage and current in AC circuits.