Answer:
C) AUCAUCAUC
Step-by-step explanation:
The mRNA is formed with nitrogenous bases complementary to the nitrogenous bases that the DNA strand (used as a template for the creation of RNA) possessed. However, RNA does not have the Thymine nitrogen base, instead the Uracila nitrogen base is placed. Accordingly, if the DNA base sequence used as template is adenine, thymine, guanine and cytosine (ATGC), the mRNA sequence will be uracil, adenine, guanine and cytosine (UAGC).
In the case of the above question, the DNA base sequence was TAGTAGTAG, from this we can say that the mRNA created from that DNA will have its AUCAUCAUC base sequence.