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 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

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.

The following diagram shows:

1. Multicarpellary, syncarpus pistil of Papaver 2. Multicarpellary, apocarpus pistil of Papaver 3. Multicarpellary, apocarpous gynoecium of Michelia 4. Multicarpellary, syncarpous gynoecium of Michelia

Which layer of the anther wall helps in its dehiscence?

Which one of the following statements regarding post-fertilization development in flowering plants is incorrect?

1. Ovules develop into an embryo sac

2. Ovary develops into fruit

3. Zygote develops into an embryo

4. Central cell develops into endosperm

What is the fate of the male gametes discharged in the synergid?

In some plants, the female gamete develops into an embryo without fertilization. This phenomenon is known as:

Persistent nucellus in the seed is known as: