TLS Online TPP Program

#Id: 2274

#Unit 3. Fundamental Processes

E. coli encodes several other s subunits that can replace σ 70 under certain circumstances.

a.σ 32 

b.σ 54

TLS Online TPP Program

#Id: 1577

#Unit 4. Cell Communication and Cell Signaling

β-catenin binds to TCF to displace the Gro repressor and recruits co-activator proteins Pygo, LGS, to activate target gene expression.

TLS Online TPP Program

#Id: 8841

#Unit 10. Ecological Principles

Flow of food energy up the trophic levels

TLS Online TPP Program

#Id: 9586

#Unit 11. Evolution and Behavior

Paleogene - Radiation of mammals, birds, snakes, angiosperms, pollinating insects

TLS Online TPP Program

#Id: 9210

#Unit 11. Evolution and Behavior

Genetic bottleneck

Genetic drift arises is through a genetic bottleneck, which develops when a population undergoes a drastic reduction in size