Question

Match the following.

	‘A’		‘B’
(A)	Auxin	(I)	Ripening and maturity of fruits
(B)	Gibberellin	(II)	Differentiation of xylem elements
(C)	Cytokinin	(III)	Prevention of genetic and physiological dwarfism
(D)	Ethylene	(IV)	Found from tumour tissue of tobacco

• A. $\left(\right.A\left.\right)-\left(\right.IV\left.\right);\left(\right.B\left.\right)-\left(\right.III\left.\right);\left(\right.C\left.\right)-\left(\right.II\left.\right);\left(\right.D\left.\right)-\left(\right.I\left.\right)$
• B. $\left(\right.A\left.\right)-\left(\right.IV\left.\right);\left(\right.B\left.\right)-\left(\right.II\left.\right);\left(\right.C\left.\right)-\left(\right.III\left.\right);\left(\right.D\left.\right)-\left(\right.I\left.\right)$
• C. $\left(\right.A\left.\right)-\left(\right.II\left.\right);\left(\right.B\left.\right)-\left(\right.III\left.\right);\left(\right.C\left.\right)-\left(\right.IV\left.\right);\left(\right.D\left.\right)-\left(\right.I\left.\right)$
• D. $\left(\right.A\left.\right)-\left(\right.III\left.\right);\left(\right.B\left.\right)-\left(\right.IV\left.\right);\left(\right.C\left.\right)-\left(\right.II\left.\right);\left(\right.D\left.\right)-\left(\right.I\left.\right)$

Answer 1

Answer: (C)

Auxins are used for the differentiation of xylem elements, gibberellin is used for the removal of dwarfism and used for inter-nodal elongation. Cytokinin is a modified form of adenine and found in tumour cell of tobacco and used for overcoming apical dominance. Ethylene is a ripening hormone.