Auxin

Q.

Name one synthetic auxin.

Q.

Vernalisation can be replaced by the action of

1. Cytokinin

2. Auxin

3. Gibberellin

4. Ethylene

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

1. natural
2. semi-synthetic
3. synthetic
4. semi-natural

Q. It takes a very long time for pineapple plants to produce flowers. Which combination of hormones can be applied to artificially induce flowering in pineapple plants throughout the year to increase yield?

1. Cytokinin and abscisic acid
2. Auxin and ethylene
3. Gibberellin and cytokinin
4. Gibberellin and abscisic acid

Q.

Match the following
(a) Indole compounds (i) Kinetin
(b) Terpenes (ii) ABA
(c) Adenine (iii) IAA
(d) Carotenoids (iv) $G{A}_3$

1. a - iv, b - iii, c - ii, d - i

2. a - iii, b - iv, c - i, d - ii

3. a - ii, b - iv, c - i, d - iii

4. a - i, b - ii, c - iii, d - iv

Q.

Pick up the synthetic auxins:

1. IAA

2. IBA

3. NAA

4. All of the above