What is the Lk of a 5,000 bp circular duplex DNA molecule after eight enzymatic turnovers by a single molecule of DNA gyrase in the presence of ATP?

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#Question id: 490

#Unit 1. Molecules and their Interaction Relevant to Biology

Which one of the following statements about gluconeogenesis is false?

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#Question id: 288

#Unit 1. Molecules and their Interaction Relevant to Biology

Which does not occur during the hydrolysis of RNA by RNase A?

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#Question id: 34139

#Unit 7. System Physiology – Animal

I. Oxytocin and vasopressin are typical neural hormones , that is, hormones secreted into the circulation by nerve cells.

II. Vasopressin and oxytocin each have a characteristic neurophysin associated with them in the granules in the neurons.

III. The precursor for AVP, prepropressophysin , contains a 19-amino-acid residue leader sequence followed by AVP, neurophysin II, and a glycopeptide. 

IV. Prepro-oxyphysin, the precursor for oxytocin, is a similar but smaller molecule that lacks the glycopeptide.

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#Question id: 23074

#Unit 12. Applied Biology

For culturing, plasma from the adult chicken is preferred to mammalian plasma because

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#Question id: 2273

#Unit 2. Cellular Organization

The bacterial cell wall is composed of