Sphingolipids contain a single fatty acid, in amide linkage to the sphingosine backbone.

TLS Online TPP Program

#Id: 5507

#Unit 10. Ecological Principles

The proportion of occupied patches will stabilize over time to 1− (x/m) x is the extinction rate of populations in patches per unit time m is the rate of movement between patches

TLS Online TPP Program

#Id: 1418

#Unit 4. Cell Communication and Cell Signaling

Integrins are the principal receptors used by animal cells to bind to the extracellular matrix. 

 

TLS Online TPP Program

#Id: 7095

#Unit 3. Fundamental Processes

 A series of 3 G-C pairs in the stem that precedes the loop containing the anticodon is unique to tRNAf Met. These base pairs are required to allow the fMet- tRNAf to be inserted directly into the P site.

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#Id: 10419

#Unit 4. Cell Communication and Cell Signaling

Epithelial-to-mesenchymal transition (EMT) 

play a crucial role in metastasis

TLS Online TPP Program

#Id: 2179

#Unit 11. Evolution and Behavior

Genetic drift and directional selection will eventually result in fixation of allele.