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Question

'Golden rice' developed through transgene approach is enriched with

A
High lysine content
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B
High methionine content
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C
High glutenin content
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D
High vitamin A content
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Solution

The correct option is D High vitamin A content
Rice is a staple food in many countries, particularly in Asia, but does not contain vitamin A or its immediate precursors. By inserting two genes from Daffodil and one gene from a bacterial species into rice plants, Swiss researchers have produce rice capable of synthesizing β-carotene, the precursor of vitamin A. It is needed by the retina of the eye in the form of retinal, which combines with protein opsin to form rhodopsin, the light-absorbing molecule necessary for both low-light and color vision.
Deficiency of vitamin A causes night blindness and skin disorders. This rice is called 'Golden rice' because of yellow colour of rice grains due to the presence of β-carotene.
So, the correct answer is 'High vitamin A content'.

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