Answer:
To construct the complementary strand of DNA, you need to pair each base with its complementary base:
Original Strand: A G C G A T C T A T A G T A T T C G A
Complementary Strand: T C G C T A G A T A T C A T A A G C T
Remember the base pairing rules: Adenine (A) pairs with Thymine (T), and Guanine (G) pairs with Cytosine (C).
