TATA less, Inr Less promoters uses Sp1 activator to position TBP with TAFs

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#Id: 2374

#Unit 5. Developmental Biology

An anterior-to-posterior gradient of Erk signaling functions as a positive inducer of head specification

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#Id: 1602

#Unit 5. Developmental Biology

As cells enter the primitive streak, they undergo an epithelial-to-mesenchymal transformation.

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#Id: 2664

#Unit 7. System Physiology – Animal

The thick ascending limb of the loop of Henle is the site of action of the powerful “loop” diuretics.

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#Id: 8689

#Unit 1. Molecules and their Interaction Relevant to Biology

Pyruvate kinase is allosterically inhibited by ATP, acetyl-CoA, and long-chain fatty acids

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#Id: 7385

#Unit 5. Developmental Biology

A posterior-to-anterior gradient of Nanos protein A posterior-to-anterior gradient of Caudal protein