The first step in determining the mRNA sequence is to transcribe the DNA sequence. During transcription, the DNA sequence is used as a template to synthesize a complementary RNA sequence. The RNA sequence is then used as a template for protein synthesis.
Transcription involves replacing the T's in the DNA sequence with U's. Therefore, the mRNA sequence for the given DNA sequence is:
AUGUGGAUCGCU GUCUG
As you can see, the change in the DNA sequence has caused a change in the mRNA sequence. Specifically, the second base of the first codon (TAC) has changed from an A to a U, resulting in a different amino acid being encoded.
To determine the amino acid sequence, we need to use the genetic code, which relates each codon to a specific amino acid. Using the genetic code, we can translate the mRNA sequence into an amino acid sequence:
Met Trp Ile Ala Val Leu
As for the effects of this mutation, it depends on the specific amino acid that was changed and its location in the protein. Some mutations have no effect on protein function, while others can have serious consequences. Without more information, it's impossible to say what the effects of this mutation might be.
Finally, as for the type of mutation, this appears to be a point mutation, specifically a missense mutation. This type of mutation involves a change in a single nucleotide that results in a different amino acid being encoded.