TLS Online TPP Program

#Id: 10131

#Unit 6. System Physiology – Plant

PIN1 mediates vertical transport of IAA from the shoot to the root along the embryonic apical–basal axis and creates an auxin sink that drives basipetal auxin transport upward from the root apex via PIN2 efflux carriers.

TLS Online TPP Program

#Id: 1693

#Unit 4. Cell Communication and Cell Signaling

RAG1 is expressed at all phases of the cell cycle, RAG2 is stable only in G0- or G1-phase cells.

TLS Online TPP Program

#Id: 7850

#Unit 1. Molecules and their Interaction Relevant to Biology

The 6-membered cyclic form of sugars is usually called the “pyranose” form in reference to the cyclic ether pyran.

TLS Online TPP Program

#Id: 5478

#Unit 7. System Physiology – Animal

TLS Online TPP Program

#Id: 3511

#Unit 2. Cellular Organization

Introns may more freely accumulate point substitutions and other changes due to no selection pressure.  Introns evolve or accumulate mutations/changes much more rapidly than exons