MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Apical Dominance

The major nat...

Question

The major natural auxins is .........

A

IBA

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

B

2, 4 D

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

C

IAA

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

D

NAA

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

Open in App

Solution

The correct option is C IAA
Auxins are plant hormones produced at the stem tip that promotes cell elongation. The most important auxin produced by plants is indole-3-acetic acid (IAA).

Suggest Corrections

thumbs-up

0

Similar questions

Q. IAA and IBA are auxins while NAA and 2,4-D are auxins.

Q. Match the following and choose the correct combination.

	List I		List II
A	Zeatin	1	Flowering hormone
B	Florigen	2	Synthetic auxin
C	IBA	3	Cytokinin
D	NAA	4	Natural auxin

Q. Read the given statements and select the correct option.
(i) Darwin and Darwin (1880) found that sensation of unilateral illumination was perceived by the coleoptile tip of canary grass.
(ii) IAA is universal natural auxin, discovered by Kogl et al.
(iii) IBA is both natural and synthetic auxin.
(iv) Auxins promote the growth of lateral shoots.

Q. Artificial application of auxins like IAA, IBA, and NAA to unpollinated pistils can form

Identify the set of natural auxins (A) and synthetic auxins (B) from the following.

1. 2,4 - B

2 .NAA

3. 4-chloro AA

4.PAA

5.2,4,5-T

6. IBA

7. IAA

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Plant Growth Regulators

BIOLOGY

Watch in App

explore_more_icon

Explore more

Apical Dominance

Standard XII Biology

Join BYJU'S Learning Program

CrossIcon