Plants deficient in zinc, show reduced biosynthesis of growth hormone

Cytokinin

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Auxin

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Ethylene

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Abscisic acid

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Solution

The correct option is D Auxin
Zinc is a necessary element required for the synthesis of IAA ( Indole-3- acetic acid), a type of auxin. So, deficiency of Zn will reduce its production.
So, the correct answer is 'Auxin'

Suggest Corrections

	Column-I		Column-II
(a)	Iron	(i)	Photolysis of water
(b)	Zinc	(ii)	Pollen germination
(c)	Boron	(iii)	Required for chlorophyll biosynthesis
(d)	Manganese	(iv)	IAA biosynthesis