AP BIOLOGY

Detailed explanation-1: -Methionine is coded as AUG. It is also the start codon. It initiates protein synthesis. During protein synthesis, methionine is the first amino acid to dock in the ribosome.

Detailed explanation-2: -AUG is the most common START codon and it codes for the amino acid methionine (Met) in eukaryotes and formyl methionine (fMet) in prokaryotes. During protein synthesis, the tRNA recognizes the START codon AUG with the help of some initiation factors and starts translation of mRNA.

Detailed explanation-3: -For example, AUG codes for the amino acid methionine (beige).

Detailed explanation-4: -Methionine and translation initiation During translation, AUG acts as an initiator of protein synthesis as well as a codon for methionine (Met) incorporation at internal protein positions in eukaryotes and an N-formylmethionine (fMet) in prokaryotes.

Detailed explanation-5: -This sequence of mRNA codes for the amino acids methionine-lysine-leucine-arginine-arginine-methionine-methionine-methionine. Learn Science at Scitable.