(a)[7]
Using the details in Fig. 6.1, complete the sentences to explain how rice is genetically modified so that it contains beta-carotene.
(b)[2]
Apart from structural characteristics, state two reasons why bacteria are useful in genetic modification.
(c)[3]
Discuss the disadvantages of genetically modifying rice plants to produce beta-carotene.
(d)[2]
Beta-carotene is needed to make vitamin A, which is vital for eye function. State the nutrient needed to prevent: scurvy rickets.