The action of Dicer generates the short RNA molecule that will determine what target RNA is acted upon. The active form of the regulatory RNA is the single-strand form—at this stage called the guide RNA—incorporated into a RISC protein complex.

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#Id: 7449

#Unit 5. Developmental Biology

For induction of prespore differentiation and control of spore germination cAMP is produced by adenylate cyclase G (ACG)

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#Id: 5819

#Unit 7. System Physiology – Animal

The renal epithelial cells express the enzyme 11β-HSD2, which prevent cortisol from activating mineralocorticoid receptors.

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#Id: 10240

#Unit 6. System Physiology – Plant

ABA has a single chiral center at C‐1′. Only the (S)‐enantiomer occurs in nature

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#Id: 6903

#Unit 8. Inheritance Biology

Chromosome Mutations

Chromosome rearrangements 

Aneuploidy

Polyploidy

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#Id: 2163

#Unit 11. Evolution and Behavior

An adaptation is a characteristic that enhances the survival or reproduction of organisms that bear it.