The reaction occurs on an immune complex or other non cellular activating surface, then the hydrophobic binding sites cannot anchor the complex and it is released. Released C5b67 complexes can insert into the membrane of nearby cells and mediate “innocent bystander” lysis.

TLS Online TPP Program

#Id: 9235

#Unit 6. System Physiology – Plant

The C4 pathway, involving mesophyll cells and bundle-sheath cells, predominates in plants of tropical origin. 

TLS Online TPP Program

#Id: 10451

#Unit 4. Cell Communication and Cell Signaling

Chromosomal translocation 

That brings a growth regulatory gene under the control of alternative enhancers that cause inappropriate expression of the gene

TLS Online TPP Program

#Id: 7611

#Unit 5. Developmental Biology

Polyspermy occurs more frequently in mouse eggs bearing mutant ZP2 that cannot be cleaved by ovastacin

TLS Online TPP Program

#Id: 9544

#Unit 11. Evolution and Behavior

Just as muscles become strengthened by work, more strongly exercised organs attract and become enlarged by the “nervous fluid.” 

Acquired during an individual’s lifetime, are inherited—a principle called inheritance of acquired characteristics.

TLS Online TPP Program

#Id: 9180

#Unit 11. Evolution and Behavior

Average fitness

In a species, only 1 of every 1000 seeds survives to reproductive age, and that those that survive produce an average of 3000 seeds.