One other region behaves like oriC:

The promoter of the dnaA gene also shows a delay before remethylation begins.

While it is hemimethylated, the dnaA promoter is repressed, which causes a reduction in the level of DnaA protein.

So Initiation of Replication (E.coli) takes place when GATC at origin is full methylated as well as promoter of DnaA gene. 

TLS Online TPP Program

#Id: 9191

#Unit 11. Evolution and Behavior

Types of selection

TLS Online TPP Program

#Id: 9192

#Unit 11. Evolution and Behavior

TLS Online TPP Program

#Id: 9193

#Unit 11. Evolution and Behavior

The allelic frequency at equilibrium (qˆ) depends on the relative fitnesses (usually expressed as selection coefficients) of the two homozygotes:

TLS Online TPP Program

#Id: 9194

#Unit 11. Evolution and Behavior

Hitchhiking

An important consequence of linkage disequilibrium is hitchhiking. This happens when an allele at  one locus spreads by natural selection acting on a second locus that is in linkage disequilibrium with  the first.

TLS Online TPP Program

#Id: 9195

#Unit 11. Evolution and Behavior

Type of natural selection

1. Stabilized natural selection

2. Directional Natural selection

3. Disruptive Natural selection

4. Balance natural selection

TLS Online TPP Program

#Id: 9196

#Unit 11. Evolution and Behavior