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1193pts?990 Question 7 of 19 Stacked Part H Suppose you can synthesize a short duplex DNA fragment with ary sequence you desire. With this synthetic fragment and the procedures described in parts A through G, you could remove an EcoRI restriction site from a DNA molecule and incorporate a new BamHI restriction site at approximately the same location. There are at least two different methods for replacing an EcoRI restriction site with a BamHI restriction site. Complete the passage describing the method that inserts a DNA fragment with blunt ends. Cut the DNA with
_(_())_(_())then treat the DNA with
?to create blunt ends. Then ligate a synthetic fragment with the
_(_())_(_())recognition sequence between the two resulting blunt ends. A second method would be to synthesize a DNA fragment that would ligate efficiently to the sticky ends generated by EcoRI cleavage and introduce a BamHI cleavage site, without regenerating the EcoRI cleavage site. Select the synthetic DNA fragment you could use to replace an EcoRI restriction site with a BamHI restriction site.
?
5^(')-GATCGAATTC-3'
?
3^(')-CTTAAGCTAG-5
?5'-TTAAGGATCC-3'
?
5^(')-AATTGGATCC-3' 3'-CCTAGGITAA-5'
5^(')-AATTCCTAGG-3'
3^(')-CCTAGGAATT-
5^(')3'-GGATCCTTAA=5'