For your biology exam you should be able to

• describe the stages of the transfer of a human gene into bacteria
• explain the reason for an increasing need for insulin
• give one or two advantages of genetically engineered insulin
• explain how biological detergents work and give some of their advantages
• state that antibiotics prevent the growth of bacteria
• explain the need for a range of antibiotics
• describe the advantages of the immobilization technique
• compare the continuous-flow and batch processes