Describe the use of pectinase in fruit juice production

Outline examples of genetic modification: (a) the insertion of human genes into bacteria to produce human proteins (b) the insertion of genes into crop plants to confer resistance to herbicides (c) the insertion of genes into crop plants to confer resistance to insect pests (d) the insertion of genes into crop plants to improve nutritional qualities

State that bacteria are useful in biotechnology and genetic modification due to their rapid reproduction rate and their ability to make complex molecules