Dollo’s law:  A biological generalization positing that complex characters, once lost in evolution, are extremely unlikely to reappear and thus the loss of complex characters is virtually always irreversible.

TLS Online TPP Program

#Id: 878

#Unit 13. Methods in Biology

The efficiency of FRET is inversely proportional to the sixth power of the distance between donor and acceptor.

TLS Online TPP Program

#Id: 2267

#Unit 11. Evolution and Behavior

Breeder’s equation, predict how much evolutionary change will result from selective breeding.

TLS Online TPP Program

#Id: 1693

#Unit 4. Cell Communication and Cell Signaling

RAG1 is expressed at all phases of the cell cycle, RAG2 is stable only in G0- or G1-phase cells.

TLS Online TPP Program

#Id: 10348

#Unit 4. Cell Communication and Cell Signaling

BAFF-R expression is first detected in T1 B cells and increases steadily there after.

Signaling through the BAFF/BAFF-R axis promotes survival of transitional B cells by inducing the synthesis of anti-apoptotic factors such as Bcl-2, Bcl-xl, and Mcl-1

TLS Online TPP Program

#Id: 8979

#Unit 11. Evolution and Behavior