Biotrophic fungi usually penetrate the rigid cell wall via the formation of a specialized infection structure on the plant

surface called an appressorium. Then, the emerging penetration

peg breaches the rigid plant cell wall and provides entry into the plant cell. Finally, a haustorium forms upon entry into the plant cell.

TLS Online TPP Program

#Id: 6345

#Unit 8. Inheritance Biology

Hemophilia  

X-Linked recessive disease

Reduces blood clotting

TLS Online TPP Program

#Id: 1895

#Unit 4. Cell Communication and Cell Signaling

T-Cell Activation and Differentiation

TLS Online TPP Program

#Id: 8974

#Unit 11. Evolution and Behavior

TLS Online TPP Program

#Id: 10436

#Unit 4. Cell Communication and Cell Signaling

Indirect-acting carcinogens 

Relatively unreactive compounds that become modified to more reactive forms by cellular cytochrome P-450 enzymes

TLS Online TPP Program

#Id: 1889

#Unit 4. Cell Communication and Cell Signaling

Thymic selection

The most distinctive property of the mature T cells is that they recognize only foreign antigen combined with self-MHC molecules.