The number of electrons in a neutral atom is equal to the number of protons.

TLS Online TPP Program

#Id: 7114

#Unit 6. System Physiology – Plant

In the absence of ethylene, ETR1 and the other ethylene receptors activate the kinase activity of CTR1. This leads to a repression of the ethylene response pathway, possibly through a MAP kinase cascade. 

The binding of ethylene to the ETR1 dimer results in its inactivation, which causes CTR1 to become inactive.

TLS Online TPP Program

#Id: 666

#Unit 3. Fundamental Processes

Short repeating sequence from the human telomere forms three stacked G quartets.

TLS Online TPP Program

#Id: 7174

#Unit 5. Developmental Biology

High β-catenin + Nodal related high + Veg T, Vg1 = Organizer 

TLS Online TPP Program

#Id: 2594

#Unit 13. Methods in Biology

A more attractive alternative is to cover the reaction mixture with a plug of inert wax and place the critical reagent on top of this plug. 

TLS Online TPP Program

#Id: 3275

#Unit 6. System Physiology – Plant

Complex III, also called cytochrome bc1 complex or ubiquinone;