Question

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

• A. A - 1 ,2,3&4 B - 5 ,6&7
• B. A - 1 ,5, 7&3 B - 2 , 4 & 6
• C. A - 7,3&4 B - 1 , 2 & 6
• D. A - 4 , 6&7 B - 2 ,5, 3 &1

Answer 1

The correct option is C

A - 7,3&4 B - 1 , 2 & 6

The natural auxin compounds are Indole acetic acid, 4 - chloro indole acetic , acid and phenylacetic acid. Artificially synthesized auxin compounds are naphthalene acetic acid, indole butyric acid, 2,4-Dichlorophenoxy acetic acid and 2,4,5-Trichlorophenoxy acetic acid.