Question

Match the columns and find the correct combination:

	I		II
a	Auxin	1.	Herring sperm DNA
b	Cytokinin	2.	Inhibitor of growth
c	Gibberellin	3.	Apical dominance
d	Ethylene	4.	Epinasty
e	Abscisic acid	5.	Induces amylase synthesis

• A. a- 3, b- 1, c- 5, d- 4, e- 2
• B. a- 4, b- 5, c- 1, d- 3, e- 2
• C. a- 2, b- 1, c- 5, d- 3, e- 4
• D. a- 3, b- 1, c- 5, d- 2, e- 4
• E. a- 4, b- 1, c- 5, d- 3, e- 2

Answer 1

The correct option is A a- 3, b- 1, c- 5, d- 4, e- 2

Kinetin, a type of cytokinin was isolated from autoclaved herring sperm DNA. It has cell division-promoting activity. Auxin is a plant hormone. It promotes stem elongation and thus regulates apical dominance. Gibberellic acid is a plant hormone which breaks the dormancy. Before germination, it stimulates the synthesis of amylase enzyme. Amylase hydrolyzes starch into glucose which is used to provide nourishment to the seed embryo. Ethylene is a plant hormone that causes the downward bending of the plant part. This is called as epinasty. Abscisic acid is a plant hormone that acts as the inhibitor of growth.

Thus, the correct answer is option A.