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If the growing plant is decapitated, then (a) its growth stops (b) leaves become yellow and...

If the growing plant is decapitated, then

(a) its growth stops

(b) leaves become yellow and fall down

(c) axillary buds are inactivated

(d) axillary buds are activated.

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Answer #1

The correct option is d) axillary buds are activated.

If the growing plant is decapitated, then axillary buds are activated. Decapitating a growing plant indicates the removing shoot apex of the plant. Auxin is a growth promoting phytohormone, which is present in apex and it inhibits the growth of axillary buds, therefore only the apex continues to develop. When the apex containing auxin is decapitation is done, then axillary buds show their growth, this is because the apical dominance is removed.

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