Final answer:
The complementary DNA strand to the sequence TTGAGCTAC is AACTCGATG, determined by the specific base pairing rules where A pairs with T and C pairs with G.
Step-by-step explanation:
The question pertains to the concept of complementary DNA strands in biology, specifically pertaining to the structure of the DNA molecule. In DNA, the bases pair up with each other in a specific manner: adenine (A) pairs with thymine (T), and cytosine (C) pairs with guanine (G). Hence, given the sequence of one DNA strand, one can determine the sequence of its complementary strand. If one strand has the sequence TTGAGCTAC, the complementary sequence would be AACTCGATG, following the base pairing rules. This sequence reading in the 5'-3' direction is complementary to the provided sequence in the 3'-5' direction.