Start point, is the first base of mRNA to be A

• Initiator (Inr) is Py2CAPy5, where Py stands for any pyrimidine. The Inr is contained between positions -3 and +5.

• TATA box, usually located, 25 bp upstream in its location at -25

• The exception is in yeast, where the TATA box is more typically found at -90.

TLS Online TPP Program

#Id: 10239

#Unit 6. System Physiology – Plant

ABA was originally thought to induce abscission, however, abscission is regulated by ethylene rather than ABA.

TLS Online TPP Program

#Id: 3994

#Unit 7. System Physiology – Animal

Phase 3 (rapid repolarization), calcium channels close and slow potassium channels open

TLS Online TPP Program

#Id: 5972

#Unit 10. Ecological Principles

Upwelling zones (where nutrients reach the surface from deeper waters) and continental shelf areas (where bottom sediments in shallow water rapidly exchange nutrients with surface waters) support greater production.

Freshwater production is highest in rivers, shallow lakes, and ponds, where nutrients are most abundant, and lowest in clear streams and deep lakes.

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#Id: 4746

#Unit 5. Developmental Biology

Sperm microtubules contacts the cortical cytoplasm and initiates cytoplasmic movements that push the male pronucleus to the nearest end of the oblong oocyte.

TLS Online TPP Program

#Id: 1476

#Unit 4. Cell Communication and Cell Signaling

Hypermethylation of CpG dinucleotides of TSG gene causes cancer and hypomethylation of CpG dinucleotides of proto-oncogenes causes cancer.