Use the codon table to determine which mrna triplets code for the amino acid cysteine, cys.

Cysteine (Cys) is a semi-essential proteinogenic amino acid. It is coded by the codons UGU and UGC.

It is normally found in most high-protein foods from animal sources such as meat, eggs, and dairy, and from plant sources such as oats, garlic, onions, brussels sprout, sprouted lentils, broccoli, and many more.

In the human body under normal physiological conditions, this amino acid can usually be produced provided that sufficient amounts of methionine is available. Although it is non-essential, it may be necessary for infants, the elderly, and those who suffer from metabolic diseases or malabsorption syndromes.