Iron is a mineral needed in a balanced diet. People who do not obtain enough iron from their diet may develop anaemia. Fig. 7.1 shows the percentage of children with anaemia in four countries in the year 2000 and in the year 2015.
(a)[3]
Describe the information shown in Fig. 7.1.
(b)[3]
State three further components of a balanced diet.
(c(i))[2]
State what is meant by the term genetic modification.
(c(ii))[2]
Describe two examples of genetic modification in crop plants, apart from improving their nutritional value.
(c(iii))[2]
State two reasons why bacteria are commonly used for genetic modification.
Worked solution & mark scheme
This 12-mark question has a full step-by-step worked solution and mark scheme. One marking point: “in countries A and C, percentage of children with anaemia falls” …