One strand of a region of DNA has the sequence 5'-ATTCCG-3'. The complementary strand for this one is __________. One strand of a region of DNA has the sequence 5'-ATTCCG-3'. The complementary strand for this one is __________. 5'-ATTCCG-3' 5'-ACCTTA-3' 5'-CGGAAT-3' 5'-TAAGGC-3'