Breadcrumb Home Biology BI 241 BI 241: General Microbiology Download as PDF Class Program Biology Credits 3.0 A study of microorganisms as they affect our environment, their relationship to disease in man, plants, and animals, microbial metabolism and genetics, symbiotic associations, and the control of microorganisms where needed. Prerequisites BI 132 and CH 142. Corequisites BI 2241L.