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mRNA TRANSCRIPTASE TO TRNA TRANSLATION HELP :(

T A C T T G C A T T G T <-- Original
A T G A A C G T A A C A <-- DNA 2nd Strand
U A C U U G C A U U G U <-- mRNA Strand
A U G A A C G U A A C A <-- tRNA AntiSense
 Try - Leu - His - Cys <-- End Product

so number 2 and three i replace the "C" in the original DNA?

T A C T T G C A T T G T <-- Original
A T G A A C G T A A C A <-- DNA 2nd Strand
U A C U U G C A U U G U <-- mRNA Strand
A U G A A C G U A A C A <-- tRNA AntiSense
 Tyr - Leu - His - Cys <-- End Product

After the mutation:

T A T T T G C A T T G T <-- Original
A T A A A C G T A A C A <-- DNA 2nd Strand
U A U U U G C A U U G U <-- mRNA Strand
A U A A A C G U A A C A <-- tRNA AntiSense
 Tyr - Leu - His - Cys <-- End Product

Wouldn't change the end product :).

Does this make sense? Do you need further assistance?

thank you so much :) i just have one more question,  for number 3 it also wouldnt change the end product?
 and for number 4 if it is deleted would it be a mutation?

3.

T A C T T G C A T T G T <-- Original
A T G A A C G T A A C A <-- DNA 2nd Strand
U A C U U G C A U U G U <-- mRNA Strand
A U G A A C G U A A C A <-- tRNA AntiSense
 Tyr - Leu - His - Cys <-- End Product

After the mutation:

T A A T T G C A T T G T <-- Original
A T T A A C G T A A C A <-- DNA 2nd Strand
U A A U U G C A U U G U <-- mRNA Strand
A U U A A C G U A A C A <-- tRNA AntiSense
 STOP CODON - Leu - His - Cys <-- End Product

4.

T A T T G C A T T G T <-- Original
A T A A C G T A A C A <-- DNA 2nd Strand
U A U U G C A U U G U <-- mRNA Strand
A U A A C G U A A C A <-- tRNA AntiSense
tyr - Cys - Ile - Incomplete!