Suppose that and are integrable and that 

The base pair on top is most likely:

You are examining chromatin structure in strawberries.  After isolating the chromatin and performing a short digestion with micrococcal nuclease you find the following banding pattern on a gel:  650bp, 1300 bp, 1950 bp, 2600 bp.  Approximately how long is the linker DNA in these cells?

Most sequence specific DNA binding proteins interact with DNA in the major grove.  What is the primary reason this is true? 

What is the polarity of the strand of DNA on the right?

How many different classes of histone proteins are there?  

What is the main purpose of shoulder pads in football?

What organization sets the safety standards for football helmets in the United States?

Match the macronutrient with the correct number of calories per gram

Hyponatremia occurs when serum concentration of what mineral drops below normal values?