KNOX transcription factors activate the cytokinin biosynthetic gene ISOPENTENYL TRANSFERASE7 -IPT7

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#Id: 543

#Unit 2. Cellular Organization

Glycocalyx is a viscous polymer that is external to the cell wall and composed of polysaccharide, polypeptide, or both. For example: Bacillus anthracis produces a capsule of D-glutamic acid

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#Id: 1170

#Unit 7. System Physiology – Animal

The clearance of inulin equals the GFR.

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#Id: 8771

#Unit 1. Molecules and their Interaction Relevant to Biology

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#Id: 6526

#Unit 7. System Physiology – Animal

Catecholamines increase the secretion of insulin and glucagon via β-adrenergic mechanisms and inhibit the secretion of these hormones via α-adrenergic mechanisms

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#Id: 2425

#Unit 3. Fundamental Processes

There are other parallels between initiation and termination. Both require breaking of hydrogen bonds (initial melting of DNA at initiation and RNA–DNA dissociation at termination), and both can utilize additional proteins (sigma factors, activators, repressors, and rho factor) that interact with the core enzyme.