Just a fun fact – during the 1970’s and 1980’s, the price of a barrel of oil was never cheaper than 1 gram of gold and was sometimes as high as 3 grams of gold. The recent “oil price cap at $USD 60” is about 1.03 grams of gold. I found it synchronistic that when I wrote down the prices and calculated the oil price in gold, that the end of the paper results in a oil price of 1.01 grams gold per barrel of oil, very, very close to the oil price cap when converted to gold. When China opens back up after they have their COVID case wave like other countries, then demand for oil will very likely push the price of oil higher.
K is for Lysine, which is essential, basic, charged, and aliphatic. Some important functions of Lysine are cross linking collagen polypeptides and histone modifications. Lysine was isolated from the milk protein casein in 1889. Lysine is encoded by the codons AAA and AAG.