Which of the given hormones is used to produce parthenocarpic or seedless banana and tomatoes?1. Auxin
2. Cytokinin
3. Abscisic acid
4. Kinetin
Which of the following is not an inhibitory substance governing seed dormancy?
1. Abscisic acid
2. Phenolic acid
3. Para-ascorbic acid
4. Gibberellic acid
Match the following :-
|
Column A |
|
Column B |
(i) |
Auxin |
(a) |
Brewing industry |
(ii) |
Gibbrelic Acid |
(b) |
Xylem differentiation |
(iii) |
Cytokinin |
(c) |
Fruit ripening |
(iv) |
Ethylene |
(d) |
Overcome Apical dominance |
1. (i) (b), (ii) (a), (iii) (d), (iv) (c)
2. (i) (b), (ii) (a), (iii) (c), (iv) (d)
3. (i) (a), (ii) (b), (iii) (d), (iv) (c)
4. (i) (b), (ii) (d), (iii) (a), (iv) (c)
Read following statements and answer in suitable term given in option:-
a. The promotion of flowering by a period of low temperature
b. Hormonal substance migrates from leaves to shoot for inducing flowering
c. The general metabolic activity of the embryo slow down or in inactive state
d. Formation of separation layer between tissue
1. Photoperiodism, vernalisation, abscission layer, dormancy
2. Vernalisation, photoperiodism, dormancy, abscission layer
3. Dormancy, photoperiodism, vernalisation, abscission layer
4. Abscission layer, vernalisation, dormancy, photoperiodism
Plant growth regulator, which promotes senescence and abscission of plant organs, is also related to which of the following physiological effects?
1. Thinning of cotton, cherry, and walnut
2. Overcome apical dominance
3. Early seed production in conifers
4. Formation of new leaves
Ethylene is used for
1. retarding ripening of tomatoes
2. the hastening of ripening of fruits
3. slowing down the ripening of apples
4. Both 2. and 3.
Coconut water contains
1. ABA
2. auxin
3. cytokinin
4. gibberellin
The effect of apical dominance can be overcome by which of the following hormone?
1. IAA
2. Ethylene
3. Gibberellin
4. Cytokinin
Match the Following:
Column I |
Column II |
A. IAA B. ABA C. Ethylene D. GA E. Cytokinin |
1. Herring sperm DNA. 2. Bolting 3. Stomatal closure 4. Weed-free lawns 5. Ripening of fruits. |
Codes
Options: | A | B | C | D | E |
1. | 4 | 3 | 5 | 2 | 1 |
2. | 5 | 3 | 4 | 2 | 1 |
3. | 4 | 1 | 4 | 3 | 2 |
4. | 5 | 3 | 2 | 4 | 4 |
The term synergistic action of hormones refers to
1. | When two hormones act together but bring about opposite effects. |
2. | When two Hormones act together and contribute to the same function. |
3. | When one Hormone affects more than one function |
4. | When many hormones bring about anyone function |