Assertion (A): | The levels of ABA may increase 100-fold during seed maturation. |
Reason (R): | The high levels of ABA in maturing seeds inhibit germination. |
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true, but (R) is not the correct explanation of (A). |
3. | (A) is true, but (R) is false. |
4. | Both (A) and (R) are false. |
Many mutants that are especially prone to wilting are deficient in:
1. ABA
2. Ethylene
3. Cytokinins
4. Gibberellins