Question

key:
abbreviation amino acid abbreviation amino acid
ala alanine leu leucine
arg arginine lys lysine
asn asparagine met methionine
asp aspartic acid phe phenylalanine
cys cysteine pro proline
glu glutamic acid ser serine
gln glutamine thr threonine
gly glycine trp tryptophan
his histidine tyr tyrosine
ile isoleucine val valine

Explanation:

Identify the purpose of the provided chart

The image displays a standard codon table (the genetic code) showing how mRNA codons (triplets of nucleotides) translate into specific amino acids, along with a key mapping three-letter abbreviations to full amino acid names.

Explain how to read the codon table

To find the amino acid for a specific codon, locate the first base on the left ("First Base"), the second base at the top ("Second Base"), and the third base on the right ("Third Base"). The intersection of these three bases yields the corresponding three-letter abbreviation of the amino acid.

Reference the abbreviation key

The key at the bottom translates the three-letter abbreviations (e.g., Ala, Arg, Asn) to their full names (e.g., Alanine, Arginine, Asparagine) to ensure accurate identification of the translated amino acids.

Answer:

This image displays the standard genetic code codon table along with an amino acid abbreviation key.

• The Codon Table (top): Used to translate mRNA codons (triplets of nucleotides written in the $5'

ightarrow3'$ direction) into their corresponding amino acids. It is organized by the first base (left), second base (top), and third base (right).

• The Key (bottom): Provides the full names for the three-letter amino acid abbreviations used in the codon table (e.g., Ala for Alanine, Met for Methionine which also serves as the start codon, and Phe for Phenylalanine).