There are three types of GPA that medical schools calculate, and you need to know about each: 1  Overall GPA â The raw GPA calculation of all of your undergraduate coursework combined. 2  BCPM â âScience GPA.â Your GPA for all of your science coursework. 3  AO GPA â âAll Otherâ GPA.
Complex media are preferable for routine cultivation of microorganisms than chemically defined media because it provides highly enriched sources such as plant or animal extrac â¦ ts, vitamins, minerals, protein, sugar, and or blood to the organism, supplying them specific nutritional substances needed for their growth.
Key Points. 1  Defined media is made from constituents that are completely understood. 2  Undefined media has some part of which is not entirely defined. 3  The presence of extracts from animals or other microbes makes a media undefined as the entire chemical composition of extracts are not completely known.