Answer
The complementary DNA sequence would be 5'-ATCGATATC-3'.
The same sequence in RNA would have all thymines replaced with uracil.
Work Step by Step
Nucleotides complementary to the template DNA strand are synthesized in the 5' to 3' direction in the DNA and RNA sequence. For instance, in DNA, adenine is complemented with thymine and cytosine with guanine. If this sequence was in RNA, the sequence would be 5'-AUCGAUAUC-3' .