Final answer:
The strand complementary to CGGTAC is GCCTAG, respecting the pairing rules where C pairs with G and A with T.
Step-by-step explanation:
If one strand of DNA is CGGTAC, then the corresponding strand would indeed be GCCTAG. In DNA, cytosine (C) always pairs with guanine (G), and adenine (A) pairs with thymine (T). Therefore, each nucleotide in the original strand pairs with a specific complementary nucleotide in the new strand: C pairs with G, G with C, G with C, T with A, A with T, and C with G.
Complementary DNA strands are crucial for DNA replication and transcription processes, allowing cells to maintain genetic information and create proteins based on that genetic code.