The standard potential for electron transfer can be related to the standard free-energy change for redox reactions by using

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#Question id: 4077

#Unit 3. Fundamental Processes

Which of the following is (are) associated with most polyadenylation events?

a. cleavage of the 5´ end of the RNA molecule

b. an assembly of a large, multiprotein complex

c. the AAUAAA site upstream of where polyadenylation will occur

d. a GU-rich or U-rich region near the cleavage site

e. slow addition of A residues followed by rapid addition of 200 to 250 more A residues

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#Question id: 376

#Unit 1. Molecules and their Interaction Relevant to Biology

Phosphoric acid is tribasic, with pKa of 2.14, 6.86 and 12.4. The ionic form that predominates at pH 3.2 is

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#Question id: 20403

#Unit 3. Fundamental Processes

Purine are rich in non-template strand applies more closely to 

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#Question id: 31373

#Unit 2. Cellular Organization

Which of the following protease breaking the cohesin circles and allowing sister chromatids to be pulled apart by the spindle apparatus that is pulling them toward opposite spindle poles?

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#Question id: 4052

#Unit 3. Fundamental Processes

Which of the following would you choose to study the role of polymerase subunits in elongation? ___

a. epitope tagging 

b. immunoprecipitation 

c. in vitro transcription 

d. western blotting