For the reaction A -> B, DG'° = –60 kJ/mol.  The reaction is started with 10 mmol of A; no B is initially present.  After 24 hours, analysis reveals the presence of 2 mmol of B, 8 mmol of A. Which is the most likely explanation?

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#Question id: 4004

#Unit 3. Fundamental Processes

The sequence CCA must occur ________.

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#Question id: 16142

#Unit 4. Cell Communication and Cell Signaling

Stem cells are defined by two capacities:

(1) the ability to regenerate or “self-renew” and

(2) the ability to differentiate into all diverse cell types. Embryonic stem cells have the capacity to generate every specialized cell type in an organism, in other words,

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#Question id: 19190

#Unit 13. Methods in Biology

Emulsion or droplet PCR is another modification of PCR. Which of the statement holds true?

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#Question id: 28326

#Unit 5. Developmental Biology

Infolding of a sheet of epithelium cells which are mainly seen in the sea urchin endoderm ?

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#Question id: 4960

#Unit 11. Evolution and Behavior

Letʹs say that a hypothetical submersible robot was used to collect samples of sedimentary rock from the sea floor along the section illustrated. The robot moved back and forth along the transect, collecting first from site A, then site III, then site B, then site II, and lastly site D. Assuming that sedimentation has occurred at a constant rate along the transect over the past million years, rearrange the sites mentioned above on the basis of the thickness of the sediments overlying the igneous rock, from thickest to thinnest.