Question

During translation, nucleotide base triplets (codons) in mRNA are read in sequence in the 5’ → 3’ direction along the mRNA. Amino acids are specified by the string of codons. What amino acid sequence does the following mRNA nucleotide sequence specify? 5′â’AUGGCAAGAAAAâ’3′ Express the sequence of amino acids using the three-letter abbreviations, separated by hyphens (e.g., Met-Ser-Thr-Lys-Gly). View Available Hint(s)

Answer 1

If the mRNA sequence is AUGGCAAGAAAA it means that the triplet codons are AUG GCA AGA AAA.

AUG codes for the methionine (start codon) - Met

GCA codes for the alanine – Ala

AGA codes for the arginine – Arg

AAA codes for the lysine – Lys.