Your cells contain two types of nucleic acids, ribonucleic acid and deoxyribonucleic acid, or RNA and DNA, respectively. They differ from the other macronutrients in that they are not a source of calories in your diet, and their role is strictly to direct the synthesis of new protein molecules.
The definition of a postgraduate is a student who is studying a subject beyond the college level when he already has a college degree. Someone attending medical school is an example of a postgraduate.
Until recently. postgraduate Master's degrees were awarded without grade or class (like the class of an honours degree). Nowadays however, Master's degrees are usually classified, either into three categories (Pass, Merit or Distinction), or simply two (Pass or distinction).. 3.