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Question

Variations appearing in tissue culture are ?

A
Culture variations
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B
Auxotrophs
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C
Somaclonal variations
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D
None of the above
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Solution

The correct option is C Somaclonal variations
Auxotrophs are the mutant cells that are incapable of utilizing certain nutrients or synthesizing certain compounds and hence they can grow on minimal media plus the specific growth supplement for which they are mutant.
Variations seen in tissue culture raised plants are termed as somaclonal variations, not culture variations, they are induced by growing callus or cell suspension cultures for several cycles to produce a large number of plants followed by screening for desirable traits in the regenerated plants and their progenies.
Therefore, the correct answer is option C.

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