Acer executives promote the company's new BYOC strategy. Acer CEO Jason Chen is on far left. Acer Chairman Stan Shih is second to the left. Although the new cloud apps are free, the company wants to include extra features users can choose to pay for.
All proteins are made up of combinations of 20 different amino acids. The RNA code (like DNA) is written in just four different chemical 'letters' - bases. How can a code with four letters identify 20 different amino acids? By reading it three letters at a time - CAU, CAG, GGA, etc.
Proteins are made up of chains of small organic molecules called amino acids such as glycine, alanine, lysine or tryptophan. Amino acids contain an amine functional group, which contains a nitrogen atom, possibly one or two atoms of hydrogen, and a carboxylic acid group, which has the formula -COOH. Continue Reading.