Nitrate is energetically the best electron acceptor under anoxic conditions and is generally used preferentially by which type of microbes?

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#Question id: 3854

#Unit 3. Fundamental Processes

In prokaryotes, the presence of a protein called rho will:

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#Question id: 34111

#Unit 2. Cellular Organization

A. 11-nm chromatin fibers consist of a string of nucleosomes.

B. 30-nm fibers have six nucleosomes/turn, which are organized into a two-start helix.

C. Histone H1, histone tails, and increased ionic strength all promote the formation of the 11-nm fiber.

D. Histone octamers are well conserved during replication, with H2A-H2B dimers and H32-H42 tetramers are.

Which of the correct combination of statements

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#Question id: 11119

#Unit 7. System Physiology – Animal

Which one of the following is NOT true of inspiration

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#Question id: 20978

#Unit 12. Applied Biology

Which of these biosensors use the principle of heat released or absorbed by a reaction?

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#Question id: 1082

#Unit 4. Cell Communication and Cell Signaling

Which of the following is a type of signaling in which a cells respond to substrate that they themselves release ?