A plant breeder employ technique of emasculation

1. To cover the flower with a bag
2. To prevent self-pollination
3. To prevent stamen from being contaminated
4. To produce female plant

Which one of the following statement is false in respect of flowering plants?

1. Parthenocarpy can be induced through the application of growth hormones
2. Integuments encircle the ovule except at the tip where a small opening called the germ pore is organized
3. Endosperm development precedes embryo development
4. Apomicts have several advantages in horticulture and agriculture

To form four fully developed Polygonum type of embryosacs in angiosperms total number of meiosis and mitosis divisions generations required are :-

1. 4, 12

2. 1, 3

3. 4, 4

4. 1, 12

Megaspore mother cell differentiates from

1. Nucellus in the micropylar region.

2. Nucellus in the chalazal region.

3. Primary parietal cell in chalazal region.

4. Integument cell in micropylar region.

Which of the following has proved helpful in preserving pollens as fossils?

Winged pollen grains are present in:

1 Mustard
2. Cycas
3. Mango
4. Pinus

Pollen grains can be stored for several years in liquid nitrogen having a temperature of:

Which one of the following plants shows a very close relationship with a species of moth, where none of the two can complete its life cycle without the other?

The morphological nature of the edible part of coconut is:

1. Cotyledon

2. Endosperm

3. Pericarp

4. Perisperm