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.
  A postgraduate degree is a degree you get after your undergraduate degree, so for example a Master's degree or a Ph.D.A postsecondary degree is a degree you get after h â¦ igh school (high school = secondary school), such as a B.A. or B.Sc. A postsecondary degree is usually referred to as an undergraduate degree.onours degree is really still classified as undergraduate studies as you are completing your degree, but with higher merit than a regular undergraduate degree. Whereas a post â¦ graduate diploma is postgraduate studies and you dont have to do a research project if you dont want.