Question

Match column I with column II and select the correct option from the codes given below.

	Column I		Column II
A.	Natural auxin	(i)	NAA
B.	Synthetic auxin	(ii)	Zeatin
C.	Bakane disease of rice	(iii)	IAA
D.	Natural cytokinin	(iv)	GA
		(v)	Kinetin

• A. A - (iii), B - (i), C - (iv), D - (ii)
• B. A - (i), B - (iii), C - (iv), D - (v)
• C. A - (iii), B - (i), C - (iv), D - (v)
• D. A - (iv), B - (i), C - (v), D - (ii)

Answer 1

Answer: (A)

A - (iii), B - (i), C - (iv), D - (ii)

A) Five naturally occurring (endogenous) auxins in plants include indole-3-acetic acid, 4-chloroindole-3-acetic acid, phenylacetic acid, indole-3-butyric acid, and indole-3-propionic acid. B) Synthetic auxin analogs include 1-naphthaleneacetic acid, 2,4-dichlorophenoxyacetic acid (2,4-D), and many others.

C) GA can be a way to control Bakane disease of rice instead of introducing many genes. D) Some of the naturally occurring cytokinins are 6-Furfuryl-aminopurine, Ribosyl Zeatin (immature corns), Zeatin, Isopentinyladenine and Dihydrozeatin.

Thus, the correct answers is 'A - (iii), B - (i), C - (iv), D - (ii).'