Answer:
The correct answer is 2) AATCGTACCG
Step-by-step explanation:
In DNA there are four different bases i.e., adenine(A), guanine(G), cytosine(C) and thymine(T). Base pairing rules says that A will pair with T, T with A, G with C and C with G.
So according to this rule the complementary strand of the sequence TTAGCATGGC will be AATCGTACCG.