Internodal segments of tobacco stems, the callus is actually
1.An undifferentiated cell
2.A mass of differentiated cell
3.A mass of undifferentiated cell
4.A differentiated cell
Find the incorrect statement.
F. Skoog and his co-workers observed that
1. | Callus proliferated only if Auxin is there |
2. | Callus proliferated only if Auxin + extracts of vascular tissue was there |
3. | Callus proliferated only if Auxin + Yeast extract was there |
4. | Callus proliferated only if Auxin + coconut milk/DNA was there |
Cytokinesis promoting substance was crystallised by
1.Skoog and Darwin
2.Skoog and Miller
3.Kurosawa
4.Cousins
Kinetin term was used for …..by…
1.Cytokinins, Darwin
2.Cytokinin, Skoog And Miller
3.ABA, Darwin
4.ABA, F. Skoog
Which of the following is not ABA?
1.Inhibitor-B
2.Abcission II
3.Dormin
4.Bakane
Cousins confirmed the release of a volatile substance from ripened oranges that
1.Hastened the ripening of already ripened bananas
2.Hastened the ripening of unripened banana
3.Slowed the ripening of unripened bananas
4.Slowed the ripening of oranges
Auxin means
1.To escape
2.To slow
3.To grow
4.To fasten
Auxins
Find the odd one.
1.Initiate rooting in stem cuttings
2.Promote flowering e.g. Pineapples
3.Prevent fruit and leaf drop at early stages
4.Prevent the abscission of older mature leaves and fruits
In most higher plants, the growing apical bud inhibits the growth of …….. or axillary buds, a phenomenon called………….
1.Lateral, lateral Dominance
2.Lateral, Apical Dominance
3.Apical, Lateral Dominance
4.Apical, Apical Dominance
For tea plantations, hedge-making, which of the following PGR is used?
1.Auxins
2.Cytokinins
3.GA3
4.ABA