Regeneration blastema forms from pluripotent stem cells called clonogenic neoblasts (cNeoblasts).

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#Id: 947

#Unit 5. Developmental Biology

Resact from Arbacia egg jelly binds to its receptor on the sperm, activates the receptor’s guanylyl cyclase (RGC) activity.

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#Id: 8638

#Unit 2. Cellular Organization

Once sufficient Cln3 is synthesized from its mRNA, Cln3-CDK complexes phosphorylate and inactivate the transcriptional repressor Whi5.

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#Id: 2913

#Unit 3. Fundamental Processes

Gyrase, a type II topoisomerase, provides a swivel that allows one DNA strand to rotate around the other.

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#Id: 5005

#Unit 6. System Physiology – Plant

Continuous red light absorbed by phyB stimulates de-etiolation by maintaining high levels of PfrB.

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#Id: 744

#Unit 3. Fundamental Processes

free energy for this reaction is rather small (DG–3.5 kcal/mol).