1. | To protect seeds | 2. | To attract insects |
3. | To trap pollen grains | 4. | To disperse pollen grains |
1. | Synergids, antipodals and Polar nuclei |
2. | Synergids, Primary endosperm nucleus and zygote |
3. | Antipodals, synergids, and primary endosperm nucleus |
4. | Synergids, Zygote and Primary endosperm nucleus |
1. | wind pollinated plants | 2. | insect pollinated plants |
3. | bird pollinated plants | 4. | bat pollinated plants |
A. | 3 successive free nuclear divisions in functional megaspore. |
B. | Degeneration of 3 megaspores |
C. | Meiotic division in megaspore mother cell |
D. | Migration of 3 nuclei towards each pole. |
E. | Formation of a wall resulting in seven celled embryosac. |
1. | (A), (B), (C), (D), (E) | 2. | (C), (E), (A), (D), (B) |
3. | (B), (C), (A), (D), (E) | 4. | (C), (B), (A), (D), (E) |
1. | Moths and butterflies are the most dominant pollinating agents among insects |
2. | Pollination by water is quite rare in flowering plants |
3. | Pollination by wind is more common amongst abiotic pollination |
4. | Flowers produce foul odours to attract flies and beetles to get pollinated |
Given below are two statements:
Statement I: | Cleistogamous flowers are invariably autogamous. |
Statement II: | Cleistogamy is disadvantageous as there is no chance for cross pollination. |
In the light of the above statements, choose the correct answer from the options given below:
1. Statement I is incorrect but Statement II is correct.
2. Both Statement I and Statement II are correct.
3. Both Statement I and Statement II are incorrect.
4. Statement I is correct but Statement II is incorrect.
Which part of the fruit, labelled in the given figure makes it a false fruit?
1. D-Seed
2. A-Mesocarp
3. B-Endocarp
4. C-Thalamus
What will be the ploidy of endosperm of a seed produced after crossing tetraploid female plant with tetraploid male plant?
1. Pentaploid
2. Hexaploid
3. Diploid
4. Triploid
Which of the following set represents the correct labeling of A, B, C and D with respect to the given diagram?
1. | A- Seed Coat, B- Cotyledon, C- Endosperm, D - Hypocotyle |
2. | A -Seed Coat, B- Scutellum, C- Endocarp, D - Mesocarp |
3. | A- Seed Coat, B- Scutellum, C- Microphyle, D - Endocarp |
4. | A-Pericarp, B - Coleoptile |