Unit 1 - A microscopic world

• Microbes and man    98

• How eukaryotes are different from prokaryotes    100

• Prokaryotic organisms    102

• Viruses    102

• Eukaryotic microorganisms    104

Unit 2 - What is biotechnology?

• What is biotechnology?    110

• Main techniques of modern gene technology (PCR and Gel electrophoresis)    114

• Microorganisms used in biotechnology    116

Unit 3 - Applications of biotechnology

• Nature help us to clean air, soil, water and ... do the laundry    120

• The use of microorganisms in bioremediation    122

• Are foods made using biotechnology safe to eat?    124