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Question

................... promotes softening of fruits.

A
Polygalacturonase
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B
Colchicine
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C
Polyethylene glycol
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D
Cellulase
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E
Brazzein
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Solution

The correct option is A Polygalacturonase
Polygalacturonase (PG), otherwise called as pectinase is involved in fruit ripening. PGs degrades polygalacturonans present in the cell walls of plants by hydrolysis of the glycosidic bonds that link galacturonic acid residues.

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