Final answer:
The complementary DNA sequence to the given 5' to 3' sequence AATGCTAC is TTACGATG, following the base-pairing rules where A pairs with T and C pairs with G.
Step-by-step explanation:
When determining the complementary DNA sequence to a given DNA strand, we need to apply the base-pairing rules which state that adenine (A) pairs with thymine (T) and cytosine (C) pairs with guanine (G). The DNA strands are antiparallel, meaning the complementary strand will be oriented in the opposite 3' to 5' direction. Given the 5' to 3' sequence AATGCTAC, we can find its complementary sequence by replacing A with T, T with A, G with C, and C with G, resulting in the sequence 5' to 3' being TTACGATG.