With respect to photoperiodism, the short day plant, the long day plant and day neutral plant are represented respectively by:
1. A, B and C
2. B, A and C
3. C, B and A
4. A, C and B
A few normal seedlings of tomato were kept in a dark room. After a few days they were found to have become white-coloured like albinos. Which of the following terms will you use to describe them?
1. Mutated
2. Embolised
3. Etiolated
4. Defoliated
Plant Growth Regulators (PGRs) are not
1. Very less in number in plants
2. Small and simple molecules
3. Diverse chemical composition
4. Plant hormones or phytohormones
N6- furfurylamino purine and kinetin are derivative of …….
1.Indol compounds
2.Adenine
3.carotenoids
4.Terpenes
Abscisic Acid and ABA are derivative of…..
1.Indol compounds
2.Adenine
3.carotenoids
4.Terpenes
C2H4 or Ethylene are …...or derivative of….
1.Indol compounds
2.Gases
3.carotenoids
4.Terpenes
In the living plant body, the PGRs can be broadly divided into two groups. This classification is actually based on
1.Function
2.Structure
3.Metabolism
4.Kinetin
Plant growth promoters are not involved in
1. Cell division, cell enlargement
2. Pattern formation, seed formation
3. Dormancy, Abscission
4. Fruiting and Flowering
Plant growth promotor is not
1.Auxins
2.Gibberellins
3.Cytokinins
4.ABA
The PGRs of the other group which play an important role in plant growth inhibiting activities is not
1.Ethylene
2.ABA
3.GA
4.All of these