Class I presentation requires internal synthesis of virus protein, as shown by the requirement that the target cell be infected by live virus, and by the inhibition of class I presentation observed when protein synthesis was blocked by the inhibitor emetine.

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: 6840

#Unit 8. Inheritance Biology

Broad - sense heritability

H2 = VG/VP 

TLS Online TPP Program

#Id: 1929

#Unit 4. Cell Communication and Cell Signaling

Alternative Properdin-Activated Pathway

TLS Online TPP Program

#Id: 3964

#Unit 7. System Physiology – Animal

Conducting cells are specialized muscle cells which function to rapidly spread action potentials over the entire myocardium.

TLS Online TPP Program

#Id: 3092

#Unit 3. Fundamental Processes

A fixed time of40 minutes is required to replicate the E. coli chromosome, and an additional 20 minutes is required before the cell can divide.