Assertion (A): | Nocturnal flowers are pollinated by moths. |
Reason (R): | Nocturnal flowers are highly fragrant and dull in colour |
1. | Both (A) and (R) are true and (R) is the correct explanation of (A) |
2. | Both (A) and (R) are true and (R) is not the correct explanation of (A) |
3. | (A) is true, (R) is false |
4. | (A) is false and (R) is false |
A. | Wind pollinated flowers have a single ovule in each ovary |
B. | Both wind and water pollinated flowers do not produce nectar |
C. | Bees are the dominant biotic pollinating agents |
D. | In geitonogamy transfer of pollen grains from anther to the stigma of another flower of different plant takes place |
Assertion (A): | The megaspore mother cell divide mitotically to produce four spores. |
Reason (R): | Megaspore mother cells are diploid and megaspore is haploid. |
1. | Both (A) & (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) & (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true but (R) is false. |
4. | Both (A) is false but (R) is true. |
Group-A | Group-B |
A. Aleurone layer | i. without fertilization |
B. Parthenocarpic fruit | ii. Nutrition |
C. Ovule | iii. Double fertilization |
D. Endosperm | iv. Seed |
Assertion (A): | Hybrids are widely used in cultivation to increase productivity and apomixes can be an important tool for maintaining hybrid nature. |
Reason (R): | Seeds produced by apomictic plants are identical to mother plant as there is no segregation |
1. | Both (A) & (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) & (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true statement but (R) is false. |
4. | Both (A) and (R) are false statements. |