Question

Match the column-A (Scientists) with column-B (Discovery):

	Column-A		Column-B
I.	C. Darwin and F. Darwin	A.	Cytokinin
II.	Miller and Skoog	B.	ABA
III.	H.H. Cousins	C.	$C_2{H}_4$
IV.	Kurosawa	D.	Auxin
		E.	GA

• A. I-D, II-A, III-C, IV-E
• B. I-D, II-A, III-E, IV-B
• C. I-C, II-A, III-B, IV-D
• D. I-E, II-D, III-A, IV-C

Answer 1

The correct option is A I-D, II-A, III-C, IV-E

Charles Darwin and his son, F. Darwin first studied phototropism studying role of auxin in coleoptile of canary grass and oats.

Skoog and Miller discovered kinetin, a type of cytokinins in coconut milk. It promotes cell division.

H. H. Cousins first suggested that ethylene is the natural hormone produced by fruits of plants.

Gibberellic acid was first discovered by Kurosawa from Gibberella fujikuroi fungus found in rice.

So, the correct answer is "option a".