Replication is unidirectional when a single replication fork is created at an origin.

TLS Online TPP Program

#Id: 785

#Unit 3. Fundamental Processes

Termination efficiency can vary from 2% to 90%, Point mutations reduce termination efficiency usually occur within the stem region of the hairpin, replacing GC base pairs with weaker AT base pairs

 

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#Id: 1461

#Unit 4. Cell Communication and Cell Signaling

CAMs fall into one of four major families: 

• Cadherins

• Immunoglobulin (Ig) superfamily

• Integrins

• Selectins

TLS Online TPP Program

#Id: 8826

#Unit 6. System Physiology – Plant

The NDH pathway is especially prominent during oxidative stress. 

The second pathway involves a ferredoxin‐quinone oxidoreductase that is sensitive to antimycin A.

TLS Online TPP Program

#Id: 7412

#Unit 5. Developmental Biology

The maintenance of patterns is regulated by reciprocal interaction between neighboring cells: cells secreting Hedgehog protein activate wingless expression in their neighbors, and the Wingless protein signal, which is received by the cells that secreted Hedgehog, serves to maintain hedgehog (hh) expression

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#Id: 5795

#Unit 7. System Physiology – Animal