_______________ a bacterial enzyme, uses the energy of ATP hydrolysis to introduce negative supercoiling into DNA hence removing positive supercoiling generated during replication.

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#Question id: 5319

#Unit 11. Evolution and Behavior

When gene duplication occurs to its ultimate extent by doubling all genes in a genome, which of the following results has occurred?

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#Question id: 20715

#Unit 12. Applied Biology

Under anaerobic conditions microbial electron transfer and respiration can proceed only if

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#Question id: 3038

#Unit 2. Cellular Organization

If a culture starts with 50 cells, how many cells will be present after five generations with no cell death?

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#Question id: 11127

#Unit 7. System Physiology – Animal

As the receptor potential rises higher above threshold, which of the following best characterizes the new frequency of action potentials?

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#Question id: 23421

#General Aptitude

Promotional device which is used to improve the image and profitability of a periodical is known as