Answer: The complementary sequence will be TTAGCCT
Explanation: According to Watson and Crick base pairing rule, in DNA adenine pairs with thymine while c guanine pairs with cytosine.
DNA is a double-stranded helix in which the two strands are complementary and antiparallel to each other. Being complementary does not mean that the two strands of the DNA are the same in base sequence and composition, rather it means that where adenine is found in one strand of the DNA, thymine occurs in the other strand and wherever guanine occurs in one strand, cytosine is found in the other strand.
