Final answer:
The complementary DNA strand to the sequence AAGCCA is TTCGGT, following the base pairing rules where A pairs with T and C pairs with G.
Step-by-step explanation:
If the sequence of a DNA strand is AAGCCA, the bases on its complementary strand would read TTCGGT. DNA strands are antiparallel, meaning that the complementary strand is oriented in the opposite direction. During the process of base pairing, adenine (A) always pairs with thymine (T), and cytosine (C) pairs with guanine (G). This sequence of bases along the DNA molecule implements the genetic code. Knowing this, we can deduce the complementary base pairing and find the sequence of the other DNA strand.