Which of the following is a plant hormone with the same site of synthesis and as the site of action?

Cytokinin

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Abscissic acid

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Ethylene

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Insulin

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Solution

The correct options are
C
Ethylene

D
Insulin

Ethylene is found to be produced in fruits and remain there and cause its ripening. So, ethylene has the same site of synthesis and the site of action. Cytokinins are produced in root tips and transported to its site of action - germinating seeds, developing fruits and embryo - by xylem tissue.

Suggest Corrections

Hormones	Function
1.Ethylene	i. Helps in cell division.
2.Gibberellin	ii. Induces dormancy in buds and seeds
3.Cytokinin	iii. Helps in the ripening of fruit
4.Abscisic acid	iv. Causes bolting in plants