TLS Online TPP Program

#Id: 2440

#Unit 3. Fundamental Processes

In some cases, a nonsense mutation in one gene of a transcription unit was found to prevent the expression of subsequent genes in the unit even though both genes had their own ribosome binding sites, an effect called polarity.

TLS Online TPP Program

#Id: 182

#Unit 5. Developmental Biology

Epithelial-Mesenchymal Transition

An orderly series of events whereby epithelial cells are transformed into mesenchymal cells.

TLS Online TPP Program

#Id: 1715

#Unit 4. Cell Communication and Cell Signaling

Properties of allergens

 a. Allergens are either protein or glycoprotein in nature, with multiple antigenic sites.

 b. Many allergens have intrinsic enzymatic activity that affects the immune response.

c.  Many allergens contain potential pathogen associated molecular patterns.

d.  Many allergens enter the host via mucosal tissues at very low concentrations, which tend to predispose the individual to generate TH2 responses, leading to B-cell secretion of IgE.

TLS Online TPP Program

#Id: 7344

#Unit 11. Evolution and Behavior

Inbreeding coefficient (F)

Probability that an individual has two identical alleles for a given gene. Inbreeding coefficients can range from 0 to 1.

TLS Online TPP Program

#Id: 7433

#Unit 5. Developmental Biology

Once all proteins are functioning, a few starving cells start to emit cAMP pulses.