The function of DnaC is that of a chaperone to repress the helicase activity of DnaB until it is needed.

TLS Online TPP Program

#Id: 9094

#Unit 4. Cell Communication and Cell Signaling

Phospholipase C cleaves a phospholipid known as PI(4,5) P2, generating two second messengers: 

diffusible IP3 and membrane-bound DAG

TLS Online TPP Program

#Id: 6060

#Unit 10. Ecological Principles

Mediterranean shrublands (chaparral):  These are located near an ocean and have wet, cool winters and hot, dry summers.  Rainfall is 40 to 100 centimeters per year. 

Fire is a common feature of this biome, and the shrubs are adapted to withstand occasional fires. 

TLS Online TPP Program

#Id: 7133

#Unit 6. System Physiology – Plant

TLS Online TPP Program

#Id: 6604

#Unit 7. System Physiology – Animal

Theca cells synthesize and secrete progesterone.

TLS Online TPP Program

#Id: 2840

#Unit 13. Methods in Biology

These are His-tag subsequently removed by cleavage with a reagent such as cyanogen bromide and the protein of interest purified by protein biochemical methods such as chromatography and polyacrylamide gel electrophoresis.