Biology 9700 · AS & A Level · Genetically modified organisms in agriculture
Genetically modified organisms in agriculture — practice question
Vitamin A deficiency is a major public health issue that affects many people. One dietary source of vitamin A is carotene. In the body, carotene can be changed into vitamin A. White rice grains cannot provide vitamin A in the diet because they contain no carotene. Scientists have genetically modified a rice variety to improve the diets of people who lack vitamin A. The grains of this genetically modified rice contain carotene.
(a)[4]
Describe how genetic engineering could be used to alter a rice variety so that its grains contain carotene.
(b)[4]
Discuss the social and ethical reasons that support the scientists’ position.
Worked solution & mark scheme
This 8-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Genes needed for carotene production are obtained” …