Differentiation of callus requires a specific ratio of two hormones

Auxin and gibberellin

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Auxin and abscisic acid

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Gibberellin and abscisic acid

No worries! We‘ve got your back. Try BYJU‘S free classes today!

IAA and cytokinin

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D IAA and cytokinin
Callus is an undifferentiated tissue in plants. According to Skoog and Miller, the differentiation of callus is influenced by the ratio of the growth hormones auxin and cytokinin. A high ratio of auxin (IAA) to cytokinin leads to initiation of roots whereas a low ratio leads to development of shoots. Auxins like IAA, NAA and IBA stimulate regeneration of roots and cytokinins like BAP (benzylaminopurine) and kinetin stimulate regeneration of shoots.
Thus, the correct answer is option D.

Suggest Corrections

Similar questions

Question 20
The substance that triggers the fall of mature leaves and fruits from plants is

(a) auxin
(b) gibberellin
(c) abscisic acid
(d) cytokinin

Q. What are the exact functions of the plant hormones(Auxin,Cytokinins,Gibberellins,Abscisic acid)?

Q. Match the columns and select the correct option.

	Hormones		Functions
A.	Cytokinin	I.	Senescence
B.	Ethylene	II.	Abscission
C.	Abscisic acid	III.	Cell growth
D.	Auxin	IV.	Shoot and root formation

Question 12
Which of the following is not associated with growth of plants?

(a) Auxin
(b) Gibberellins
(c) Cytokinins
(d) Abscisic acid

Q. Match the items of column I and column II.

	Column I		Column II
$a$	Auxin	$p$	${G A}_{3}$
$b$	Gibberellin	$q$	Indole Acetic Acid
$c$	Cytokinin	$r$	Abscisic Acid
$d$	Dormin	$s$	Acetic acid
		$t$	Zeatin

Join BYJU'S Learning Program