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Question

To induce formation of organs in a callus it is necessary to provide

A
Growth hormones
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B
Water
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C
Soil
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D
Antibiotics
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Solution

The correct option is D Growth hormones
Growth hormones also known as phytohormones are organic substances which influence the physiological process in plants. In tissue culture, an unorganized and undifferentiated mass of rapidly dividing cells are formed is called as callus. To induce the formation of organs, growth hormones like cytokinin and auxin are added in a specific concentration. Cytokinin is essential for the development of roots while auxin promotes shooting
So, the correct answer is 'Growth hormones'

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