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

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