Proportion of base pairs that differ between sequences(D) 

D= 2rt

r  = rate of divergence per base pair per million  

T = time

TLS Online TPP Program

#Id: 2404

#Unit 3. Fundamental Processes

The Gre factors/TF11S enable the polymerase to cleave a few ribonucleotides from the 3' terminus of the RNA product, thereby allowing the catalytic site of RNA polymerase to be realigned with the 3' -OH.

TLS Online TPP Program

#Id: 8162

#Unit 2. Cellular Organization

For selective export of certain membrane proteins from the ER contain a di-acidic sorting signal (Asp-X-Glu, or DXE), which binds to the Sec24 subunit of the COPII

TLS Online TPP Program

#Id: 10094

#Unit 4. Cell Communication and Cell Signaling

Activation of integrins involves:

Conformational changes near the propeller and 

 βA domains

Separation of the transmembrane and cytoplasmic domains

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#Id: 8000

#Unit 10. Ecological Principles

No two different species can share the same niche but can have similar niches,  this is because of competition for resources like food, space etc

Two species cannot coexist permanently in a community if their niches are  identical

TLS Online TPP Program

#Id: 5424

#Unit 7. System Physiology – Animal

Multipolar cells have one axon and many dendrites.

Motor neurons

Hippocampal pyramidal cells with dendrites in the apex and base

Cerebellum Purkinje cells with an extensive dendritic tree in a single plane