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.
1 Proteins are made of long chains of amino acids. 2  Once in the body, proteins are broken down into small chains of amino acids and reassembled into needed proteins. 3  Essential amino acids are required for body growth and maintenance. 4  When the body cannot make them, they must be given in the diet.