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Question

Cotton fibres are derived from

A
Pericarp
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B
Phloem
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C
Pericycle
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D
Testa
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Solution

The correct option is D Testa

Cotton fibres are single, highly elongated cells derived from the outer epidermis of ovules and are developmentally similar to the trichomes of Arabidopsis thaliana. Cotton fibres are obtained from the surface of the seed coat (testa). It is not a bast fibres and so is not obtain from the phloem.

So, the correct answer is option D.


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