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Cytokinin

Which of the ...

Question

Which of the following type of phytohormones resembles nucleic acids in structure?

A

Cytokinins

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B

Auxins

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C

Gibberellins

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D

ABA

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Solution

The correct option is A
Cytokinins

Cytokinins are chemically derivatives of adenine, i.e. purines. Adenine is the nitrogen base, which is a structural components of nucleic acids.

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Similar questions

Q. Which of the following type of phytohormones resembles nucleic acids in structure?

Q. Match the names of the phytohormones with the examples listed under.

	List I		List II
A	Auxin	p	GA3
B	Gibberellin	q	Indole acetic acid
C	Cytokinin	r	Abscisic acid
D	Dormin	s	Acetic acid
		t	Zeatin

Q. The bending of the stem of a plant towards a source of light is caused by the action of a phytohormone known as :
(a) abscisic acid
(b) auxin
(c) gibberellins
(d) cytokinin

Question 02:

Coconut water contains
(a) ABA
(b) auxin
(c) cytokinin
(d) gibberellin

Q. Which of the following statements are correct?
a. Cytokinins suppress the synthesis of chlorophyll.
b. Auxins control apical dominance.
c. Gibberellins promote shoot elongation.
d. Abscisic acid enables the seeds to withstand desiccation.

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