Question

What polypeptide is coded for by this mRNA sequence? $$ 5 '-G C U-G A A-G U C-G A G-G U G-U G G-3 ' $$

Short answer

Answer: The polypeptide coded by this mRNA sequence is Alanine - Glutamate - Valine - Glutamate - Valine - Tryptophan (Ala - Glu - Val - Glu - Val - Trp).

Step-by-step solution

Identify the codons in the mRNA sequence

To begin, divide the mRNA sequence into individual codons. A codon is a group of three nucleotides, and each codon codes for a specific amino acid. The given mRNA sequence is: $$ 5' - GCU - GAA - GUC - GAG - GUG - UGG - 3' $$

Determine the corresponding amino acids for each codon

Next, use a codon table to find the amino acids that correspond to each codon. This can be found in a textbook, online, or other resources. Here are the amino acids for each of the codons: - GCU: Alanine (Ala) - GAA: Glutamate (Glu) - GUC: Valine (Val) - GAG: Glutamate (Glu) - GUG: Valine (Val) - UGG: Tryptophan (Trp)

Assemble the polypeptide

Finally, assemble the amino acids in the correct order to form the polypeptide. The amino acids should be ordered based on the positions of the codons in the mRNA sequence. The polypeptide coded for by this mRNA sequence is: Polypeptide: Alanine - Glutamate - Valine - Glutamate - Valine - Tryptophan (Ala - Glu - Val - Glu - Val - Trp)