Q. No.Identify the mismatch statement regarding post fertilization events from the following statements.
1.Wall of ovary is converted in to pericarp
2.Outer integument is converted in inner integument
3.Triploid nucleus develops as endosperm
4.Ovary is developed as fruit.
1.Wall of ovary is converted in to pericarp
2.Outer integument is converted in inner integument
3.Triploid nucleus develops as endosperm
4.Ovary is developed as fruit.
The following diagram shows:
 |
|
Shown below is a longitudinal section of the ovary, style, and stigma, showing the course followed by a pollen tube:
The parts marked as 4 and 5 are respectively:
1. Ovary and Ovule
2. Ovule and ovary
3. Style and stigma
4. Stigma and style
The plant parts which consist of two generations, one within the other, are:
| a. | Pollen grains inside the anther |
| b. | Germinated pollen grain with two male gametes |
| c. | Seed inside the fruit |
| d. | Embryo sac inside the ovule |
1. (a), (b), and (c)
2. (c) and (d)
3. (a) and (d)
4. (a) only
The body of the ovule is fused within the funicle at :
| 1. | Micropyle | 2. | Nucellus |
| 3. | Chalaza | 4. | Hilum |
What type of pollination takes place in Vallisneria?
| 1. | Pollination occurs in submerged conditions by water. |
| 2. | Flowers emerge above the surface of water and pollination occurs by insects. |
| 3. | Flowers emerge above the water surface and pollen is carried by the wind. |
| 4. | Male flowers are carried by water currents to female flowers at the surface of the water. |
Which is the most common type of embryo sac in angiosperms?
1. Tetrasporic with one mitotic stage of division
2. Monosporic with three sequential mitotic divisions
3. Monosporic with two sequential mitotic divisions
4. Bisporic with two sequential mitotic divisions
The gynoecium consists of many free pistils in flowers of
(1) Papaver
(2) Michelia
(3) Aloe
(4) Tomato
The embryo sac of an Angiosperm is made up of
1. 8 cells
2. 7 cells and 8 nuclei
3. 8 nuclei
4. 7 cells and 7 nuclei
© 2024 GoodEd Technologies Pvt. Ltd.