TLS Online TPP Program

#Id: 5479

#Unit 7. System Physiology – Animal

Ca2+ uptake into the terminal causes release of the neurotransmitter acetylcholine (ACh), which has been previously synthesized and stored in synaptic vesicles.

TLS Online TPP Program

#Id: 3660

#Unit 3. Fundamental Processes

SELB ∙ GTP ∙ Sec–tRNASec reads the UGA codon as Sec rather than “Stop,” provided that the ribosomally bound mRNA has a hairpin loop on the 3′ side of the UGA specifying Sec.

TLS Online TPP Program

#Id: 1980

#Unit 10. Ecological Principles

TLS Online TPP Program

#Id: 3532

#Unit 2. Cellular Organization

TLS Online TPP Program

#Id: 4465

#Unit 13. Methods in Biology

Cryoelectron microscopy allows examination of hydrated, unfixed, and unstained specimens in the TEM by maintaining them at -196oC (liquid nitrogen).