When polymerase binding causes transition to the open complex and initiates transcription. This gives a low level of constitutive expression called the basal level.  Binding of RNA polymerase is the rate-limiting step in this case.

TLS Online TPP Program

#Id: 8315

#Unit 2. Cellular Organization

Actin can reversibly assemble into filaments that consist of two helices of actin subunits

TLS Online TPP Program

#Id: 6250

#Unit 8. Inheritance Biology

X-Chromosome inactivation in Female Behaviour in honeybee alter by epigenetic change X-Chromosome inactivation in Female Behaviour in honeybee alter by epigenetic change         

 

TLS Online TPP Program

#Id: 8560

#Unit 1. Molecules and their Interaction Relevant to Biology

TLS Online TPP Program

#Id: 2254

#Unit 11. Evolution and Behavior

Frequency-dependent selection,

1.    Positive frequency

2.    Negative frequency

TLS Online TPP Program

#Id: 5495

#Unit 10. Ecological Principles

Under favorable circumstances, the same per unit biomass of annuals produces more seeds than the same per unit biomass of trees.