Breadcrumb Home Biotechnology BTEC224G BTEC224G: Biotechnology Externship II Download as PDF Class Program Biotechnology Credits 4 Theory Hours 0 Lab Hours 12 This optional externship, consisting of 192 hours of experience in an area of biotechnology, is extended to students who want more exposure to biotechnology before seeking employment. Arrangements are made on an individual basis. Prerequisites BTEC210G and BTEC220G; or permission of instructor