How would the dna sequence gctata be transcribed to mrna?

The RNA sequence which would be transcribed from the DNA TAG-GCA-TCG would be:

AUC-CGU-AGC

This is because with DNA and RNA - Adenine (A) binds to Uracil (U), Thymine (T) binds to A, and Cytosine (C) & Guanine (G) bind to each other.