Role of Auxin

Q.

How do humans use auxin?

Q.

"Bolting"- occurs due to the presence and action of.

1. Gibberellins

2. Auxins

3. Ethylenes

4. Kinetins

Q. Which of the following is not a function of auxin?

1. It promotes apical dominance
2. It helps in the initiation of flowering
3. It helps in seed germination
4. It can be used as weedicides

Q.

What is the gibberellin hormone?

Q. Which plant hormone is responsible for the induction of the parthenocarpy of tomatoes?

1. Auxin
2. Ethylene
3. Cytokinins
4. Gibberellins

Q. Which plant hormone is responsible for the induction of the parthenocarpy of tomatoes?

1. Auxin
2. Ethylene
3. Cytokinins
4. Gibberellins

Q. Fruit and leaf drop at early stages can be prevented by the application of:

1. Cytokinins
2. Ethylene
3. Auxins
4. Gibberellic acid

Q. Xylem differentiation is facilitated by

1. auxin
2. cytokinin
3. gibberellin
4. ethylene

Q. Which of the following auxin is commonly used as a selective weedicide for dicot weed?

1. 2, 4-D
2. IAA
3. NAA
4. IPA