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)
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B
A - (i), B - (iii), C - (iv), D - (v)
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C
A - (iii), B - (i), C - (iv), D - (v)
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D
A - (iv), B - (i), C - (v), D - (ii)
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Solution
The correct option is B 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).'