An antibody was produced and used in an immunohistochemical assay to detect the location of RNA polymerase II in a thin section of a liver biopsy. The section was stained with the antibody that had been labeled with a fluorescent tag, and then viewed under a fluorescent microscope. State where you would expect to find positive staining if the enzyme is present.

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#Question id: 11943

#Unit 7. System Physiology – Animal

Which of the following changes tends to increase GFR?

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#Question id: 10977

#Unit 7. System Physiology – Animal

A 60-year-old man’s EKG shows that he has an R-R interval of 0.55 sec. Which of the following best explains his condition?

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#Question id: 23842

#Unit 2. Cellular Organization

Which actions requires energy from ATP hydrolysis ?

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#Question id: 27065

#Unit 1. Molecules and their Interaction Relevant to Biology

Determine R and S Configurations On A Fischer Projection given below 

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#Question id: 34110

#Unit 2. Cellular Organization

A. DNA is wrapped 1.67 times around the histone octamer.

B. The structure of the DNA is altered so that it has an increased number of base pairs/turn in the middle, but a decreased number at the ends.

C. 0.6 negative turns of DNA are absorbed by the change in bp/turn from 10.5 in solution 

D. 10.2 bp/turn on the nucleosomal surface is linking-number paradox.

Find true and false