3
MCQ (Single Correct Answer)
The affect of apical dominance can be overcome by which of the following hormone?
A
IAA
B
Ethylene
C
Gibberellin
D
Cytokinin
4
MCQ (Single Correct Answer)
Match the following.
| Column I | Column II | ||
|---|---|---|---|
| A. | IAA | 1. | Herring sperm DNA |
| B. | ABA | 2. | Bolting |
| C. | Ethylene | 3. | Stomatal closure |
| D. | GA | 4. | Weed-free lawns |
| E. | Cytokinins | 5. | Ripening of fruits |
A
A - 4, B - 3, C - 5, D - 2, E - 1
B
A - 5, B - 3, C - 4, D - 2, E - 1
C
A - 4, B - 1, C - 4, D - 3, E - 2
D
A - 5, B - 3, C - 2, D - 1, E - 4
5
MCQ (Single Correct Answer)
The term synergistic action of hormones refers to
A
when two hormones act together but bring about opposite effects
B
when two hormones act together and contribute to the same function
C
when one hormone affects more than one function
D
when many hormones bring about any one function
6
MCQ (Single Correct Answer)
Apples are generally wrapped in waxed paper to
A
prevent sunlight for changing its colour
B
prevent aerobic respiration by checking the entry of $\mathrm{O}_2$
C
prevent ethylene formation due to injury
D
make the apples look attractive
7
MCQ (Single Correct Answer)
Growth can be measured in various ways. Which of these can be used as parameters to measure growth?
A
increase in cell number
B
increase in cell size
C
increase in length and weight
D
All of these