T1 cells are mIgMhi, mIgD -/lo, CD21-, CD23-, CD24+, and CD93+. 

T2 cells differ from T1 cells in having higher levels of mIgD and in expressing CD21 and CD23. 

TLS Online TPP Program

#Id: 1779

#Unit 4. Cell Communication and Cell Signaling

High levels of CD25 was responsible for the suppression of diabetes. 

TLS Online TPP Program

#Id: 7032

#Unit 11. Evolution and Behavior

In the most famous example of Lamarck’s theory, giraffes must have stretched their necks to reach foliage above them, and so their necks were lengthened. The longer necks were inherited, and over the course of generations, this process was repeated, and their necks got longer and longer. 

TLS Online TPP Program

#Id: 1756

#Unit 4. Cell Communication and Cell Signaling

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: 820

#Unit 4. Cell Communication and Cell Signaling

The interactions between organisms from different kingdoms consisting of three phases, referred to as a “zig‐zag‐zig” scheme

TLS Online TPP Program

#Id: 5938

#Unit 10. Ecological Principles

Stability of ecosystem 

More complex

More number of alternate 

More number of connecting link

More number of omnivores