Intracellular infections are the most difficult for the immune system to detect and eradicate; these can be divided into membrane-bound and cytosolic, with differing key immune response mediators

TLS Online TPP Program

#Id: 10373

#Unit 4. Cell Communication and Cell Signaling

MHC-Peptide Interaction

TLS Online TPP Program

#Id: 2454

#Unit 3. Fundamental Processes

Negative control of the lac operon. 

No lactose; repression. The lacI gene produces repressor, which binds to the operator and blocks RNA polymerase from transcribing the lac genes.

TLS Online TPP Program

#Id: 3333

#Unit 3. Fundamental Processes

Humans can exhibit a genetic disorder called xeroderma pigmentosum (XP), an autosomal-recessive disease that renders afflicted individuals highly sensitive to sunlight and results in skin lesions, including skin cancer.

TLS Online TPP Program

#Id: 4773

#Unit 5. Developmental Biology

TBX-35 inhibits pal-1 gene expression, preventing the MS cell from acquiring the C-blastomere fates.

TLS Online TPP Program

#Id: 1932

#Unit 4. Cell Communication and Cell Signaling

The Three Complement Pathways Converge at the Formation of the C5 Convertase.