A transgenic food crop, which may help in solving the problem of night blindness in developing countries is

Options

A. Bt soyabean
B. glden rice
C. flavr savr tomatoes
D. starlink maize

Answer

B

Explanation

Vitamin-A deficiency caused night blindness among children. Vitamin-A deficiency often occurs where rice is the staple food since, rice grain does not contain `beta`-carotene three transgenes providing carotene desaturase and lycopene cycloase activities were transferred into rice by Agrobacterium mediated transformation. The resulting transgenic rice popularly called goldern reice contains good quantities of `beta`- carotene. Flavr savr is genetically modifiend tomato, which remains fresh and retain their flavour much longer than normal tomato due to the blocking of synthesis of fruit softening enzyme polygalacturonase.