Q. No.While planning for an artificial hybridization programme involving dioecious plants, which of the following steps would not be relevant?
1. Bagging of the female flower
2. Dusting of pollen on the stigma
3. Emasculation
4. Collection of pollen
1. Bagging of the female flower
2. Dusting of pollen on the stigma
3. Emasculation
4. Collection of pollen
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
The phenomenon wherein, the ovary develops into a fruit without fertilisation is called:
| 1. | Parthenocarpy | 2. | Apomixis |
| 3. | Asexual reproduction | 4. | Sexual reproduction |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Flowers that have a single ovule in the ovary and are packed into inflorescence are usually pollinated by:
| 1. | Water | 2. | Bee |
| 3. | Wind | 4. | Bat |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Pollen grains lose viability within 30 minutes of their release in some members of:
| 1. | Rosaceae | 2. | Leguminosae |
| 3. | Poaceae | 4. | Solanaceae |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
The majority of water plants like water hyacinth and water lily are pollinated by:
| 1. | Water | 2. | Wind |
| 3. | Insects | 4. | Both 2 and 3 |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
At what temperature pollens can be stored for years in liquid nitrogen?
| 1. | 0°C | 2. | -100°C |
| 3. | -196°C | 4. | 4°C |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
In angiosperms, the mature female gametophyte is represented by:
| 1. | Nucellus | 2. | Megaspore |
| 3. | MMC | 4. | Embryosac |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
A typical angiosperm embryosac, at maturity, is:
| 1. | 8 celled and 8 nucleate | 2. | 8 celled and 7 nucleate |
| 3. | 7 celled and 8 nucleate | 4. | 7 celled and 7 nucleate |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Which of the following is not used by flowering plants as an outbreeding device?
| 1. | Lack of synchronization between pollen release and stigma receptivity. |
| 2. | Anther and Stigma placed at different levels. |
| 3. | Self-incompatibility. |
| 4. | Production of bisexual flowers. |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
The pollen tube releases the two male gametes first into:
1. The vicinity of the egg cell.
2. The vicinity of polar nuclei.
3. In the cytoplasm of synergids.
4. In the cytoplasm of antipodals.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
© 2024 GoodEd Technologies Pvt. Ltd.