Hemlock (Cicuta sp.) produces cicutoxin, a polyacetylene that prolongs the repolarization of neuronal action potentials.

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#Id: 1030

#Unit 5. Developmental Biology

In primary neurulation, 

cells surrounding the neural plate direct the neural plate cells to proliferate, invaginate into the body, and separate from the surface ectoderm to form an underlying hollow tube.

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#Id: 9171

#Unit 11. Evolution and Behavior

Determining allelic frequencies at equilibrium

      

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#Id: 1339

#Unit 4. Cell Communication and Cell Signaling

The function of a growth factor-  stabilize receptor dimerization

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#Id: 9186

#Unit 11. Evolution and Behavior

Relative genotypic frequency after selection

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#Id: 6011

#Unit 3. Fundamental Processes

Hence Cdc6 and Cdt1 are the key licensing factors and helicase loading proteins.