For human Y chromosome (59 million bp) estimate a) contour length; b) the length of DNA
as packaged in nucleosomes and c) the length of the DNA in a 30-nm fiber.
3. (1pt) Figure 2 below is taken from the original research paper ‘Crystal structure of MunI restriction
endonuclease in complex with cognate DNA at 1.7 Å resolution’ (The EMBO Journal (1999) 18,
5805-5816). The MunI restriction enzyme recognizes the palindromic hexanucleotide sequence
C/AATTG (the ‘/’ indicates the cleavage site). Draw the complete chemical structure of hydrogen
bond network shown in panels C and D.