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Shivaji and the Marathas

Genetic dwarf...

Question

Genetic dwarfness in some plants may be solved by treatment with:

A

Ethylene

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B

Gibberellins

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C

Auxins

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D

Antigibberellins

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Solution

The correct option is B
Gibberellins

Genetic dwarfism is solved by the usage of gibberellins. Ethylene is a gaseous hormone, which induces ripening in unripe fruits. ABA cause ageing and abscission of leaves.

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Similar questions

Assertion (A): Genetically dwarf plants on treatment with gibberellins attain the size of normal plants

Reason(R): Gibberellins cause enormous cell elongation and intermodal length

Q. Assertion : Gibberellins induce flowering in long day plants.
Reason : Genetically tall plant become dwarf by application of Gibberellin.

Q. Match the columns and choose the correct combination:

	Column I		Column II
$(a)$	Auxin	$(i)$	Colouring test lemon
$(b)$	Gibberellin	$(i i)$	Cell division test in plants
$(c)$	Cytokinin	$(i i i)$	Avena curvature test
$(d)$	Ethylene	$(i v)$	Dwarf corn test

Q. Gibberellins promote the formation of A flowers on genetically B plants in Cannabis whereas ethylene promotes formation of C flowers on genetically D Cannabis plants.

Q. Match the growth regulators with the processes and choose the correct combination from the options.

	List I		List II
a	Auxin	1	Colouring test in lemon
b	Gibberellin	2	Cell division test in plants
c	Cytokinin	3	Avena curvature test
d	Ethylene	4	Dwarf corn test

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