EST proteins regulates number of repeats in RNA component for telomere lengths.

TLS Online TPP Program

#Id: 7543

#Unit 6. System Physiology – Plant

Gibberellins Enhance Cell Wall Extensibility without Acidification. Gibberellin has no effect on the osmotic parameters but has consistently been observed to cause an increase in both the mechanical extensibility of cell walls and the stress relaxation of the walls of living cells. the enzyme Expansins and Xyloglucan endotransglycosylase (XET) is involved in gibberellin-promoted wall extension. The function of XET may be to facilitate the penetration of expansins into the cell wall.

TLS Online TPP Program

#Id: 1977

#Unit 10. Ecological Principles

Population density is the number of individuals per unit area. D=N/S  

TLS Online TPP Program

#Id: 1686

#Unit 4. Cell Communication and Cell Signaling

Recombination between the D and a JH gene segment occur during pre pro-B cell to the early pro-B-cell stage.

TLS Online TPP Program

#Id: 1447

#Unit 4. Cell Communication and Cell Signaling

Tight junctions prevent the diffusion of: 

Macromolecules

Small water-soluble molecules

Ions

Membrane proteins 

Glycolipids

TLS Online TPP Program

#Id: 9645

#Unit 4. Cell Communication and Cell Signaling

Active Ras⋅GTP binds to the N-terminal autoinhibitory domain of Raf, altering its conformation and allowing the phosphate attached to this domain to be removed by cytosolic phosphatases, causing loss of 14-3-3 binding.