During initial transcription, the polymerase remains stationary on the promoter, unwinds downstream DNA, and pulls that DNA into itself

TLS Online TPP Program

#Id: 9246

#Unit 6. System Physiology – Plant

Diurnal phosphorylated PEPCase is active and incorporation of HCO3 – into PEP. Light stimulates PEPCase‐kinase activity

TLS Online TPP Program

#Id: 10543

#Unit 4. Cell Communication and Cell Signaling

Removal of a cell from its substratum disrupts integrin signaling, leading to release of the BH3-only Bim

protein from the cytoskeleton which binds to Bak and Bax to promote pore formation.

TLS Online TPP Program

#Id: 1412

#Unit 4. Cell Communication and Cell Signaling

In vertebrate smooth muscle, phosphorylation of the myosin regulatory light chain activates contraction in Ca2+ dependent manner.

TLS Online TPP Program

#Id: 2650

#Unit 7. System Physiology – Animal

Descending part of the thin segment is highly permeable to water and moderately permeable to most

Solutes (urea and sodium).

TLS Online TPP Program

#Id: 6964

#Unit 8. Inheritance Biology

Philadelphia chromosome

Reciprocal translocation between the long arm of chromosome 22 and the tip of the long arm of chromosome 9. This translocation produces a shortened chromosome 22, called the Philadelphia chromosome.