You are given the following protein sequence: NH2-Met-Trp-Trp-Met-Trp-Met-COOH What was the sequence of the mRNA? You must write your answer 5' to 3' direction, starting with the first nucleotide of the mRNA and ending with the last nucleotide of the mRNA. DO NOT INCLUDE "5'-" or "3'-"; in your answer. Only write the nucleotide sequence. (You may use uppercase or lowercase for your answer).
AUGUGGUGGAUGUGGAUG
To determine the mRNA sequence, we need to reverse-translate the given protein sequence. Each amino acid is encoded by a three-nucleotide sequence called a codon.
Here's how we can solve this:
1. Start by writing down the amino acid sequence.
Protein sequence: Met-Trp-Trp-Met-Trp-Met
2. Refer to the genetic code table to obtain the codons corresponding to each amino acid.
Met (M): AUG
Trp (W): UGG
3. Write down the codons in the sequence corresponding to the amino acids.
mRNA sequence: AUG-UGG-UGG-AUG-UGG-AUG
4. Since mRNA is read in the 5' to 3' direction, we have our final answer.
mRNA sequence: AUGUGGUGGAUGUGG
Therefore, the mRNA sequence for the given protein sequence is AUGUGGUGGAUGUGG.