Kinesin-1 powers anterograde transport of vesicles down axons toward the (+) ends of microtubules.

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#Id: 9985

#Unit 4. Cell Communication and Cell Signaling

Antagonists of Wnt:

Secreted frizzled-related protein (Sfrp)

Wnt inhibitory factor (Wif)

Dickkopf (Dkk) family

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#Id: 5385

#Unit 10. Ecological Principles

Populations have growth limits

Categorize these limits as being either density independent or density dependent.

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#Id: 3723

#Unit 10. Ecological Principles

Species richness - which is a count of the number of species.

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#Id: 6607

#Unit 7. System Physiology – Animal

Estrogens inhibit osteoclastic activity in the bones and therefore stimulate bone growth.

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#Id: 6318

#Unit 3. Fundamental Processes

Rho binds to a sequence within the transcript upstream of the site of termination. This sequence is called a rut site (an acronym for rho utilization). 

The rho factor then tracks along the RNA until it catches up to RNA polymerase. When the RNA polymerase reaches the termination site, rho first freezes the structure of the polymerase and then invades the exit channel to destabilize the enzyme, causing it to release the RNA.