The pyrimidine ring system is shown below. What is the source of the C-2 during the de novo biosynthesis of pyrimidines?

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#Question id: 3985

#Unit 3. Fundamental Processes

The binding of CRP (cAMP receptor protein of E. coli) to DNA in the lac operon:

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#Question id: 20273

#Unit 7. System Physiology – Animal

Primary site of action of thiazide diuretics in the nephron is;

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#Question id: 780

#Unit 1. Molecules and their Interaction Relevant to Biology

Drosha and Pasha:

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#Question id: 12671

#Unit 6. System Physiology – Plant

When genetic changes in an entire plant population have been fixed over many generations by selective environmental pressure, those changes are referred to as,

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#Question id: 1793

#Unit 4. Cell Communication and Cell Signaling

Cells bearing MHC class I plus peptide are targets for specific: