(a(i))[2]
State two reasons why bacteria are useful in genetic modification and biotechnology.
(a(ii))[3]
Describe how genetic modification can improve crop plants.
(b(i))[3]
The list contains six conclusions. Tick (✓) the conclusions that may be drawn from the data in Fig. 7.1.
(b(ii))[1]
Identify the best enzyme, A or B, for use in these washing powders. Give one reason for your selection.