200 points I will give you the question to get the other 100 points

A gene has the base sequence that starts with gac tga cga tta. what would be the complementary dna strand formed from this DNA?

i already know this question It would be ctg act gct aat. please tell me if im wrong

What would be the mRNA base sequence formed from this DNA sequence?

Use the codon table below to find the first three amino acids in the protein formed from this gene.

The gene has a mutation and is changed to the sequence below.
GAC GGA CGA TTA
What kind of mutation is this?

What is the new mRNA strand produced by this mutated gene?

Does this mutation affect the protein produced? Explain.