How can genetic engineering be used to solve major worldwide dietary deficiencies such as vitamin and mineral deficiencies? (Igcse)

Some 40% of the world's people suffer from micronutrient deficiencies. In the name of the poor, genetic engineering is being promoted as the solution to this problem. Researchers have developed transgenic rice containing beta-carotene and claim it will combat Vitamin A deficiency in rice-eating regions.

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answer: b: experiments that showed that all cells are similar in how they metabolize and in their composition

explanation:

name and explain one of the event that occurs during meiosis that increases the variation in offspring even more than simple reproduction?