A, B, C, D in the following diagram respectively are:-

1.Hilum, funicle, inner integument, micropyle

2. Hilum, funicle, outer integument, micropyle

3. Funicle, outer integument, nucellus, chalazal pole

4. Funicle, outer integument, nucellus, micropylar end

Microsporangium is generally surrounded by 4 wall layers. Which of the following 3 wall layers perform the function of protection and help in the dehiscence of anther to release the pollen?

1. Epidermis, tapetum, endothecium

2. Epidermis, aril, endothecium

3. Epidermis, endodermis, mesocarp

4. Epidermis, middle layer and endothecium

The above diagram shows some stages in microgametogenesis. Identify A, Band C:

1. A: Symmetric spindle, B: Generative cell, C: Vegetative cell

2. A: Symmetric spindle, B: Vegetative cell, C: Generative cell

3. A: Asymmetric spindle, B: Vegetative cell, C: Generative cell

4. A: Asymmetric spindle, B: Generative cell, C: Vegetative cell

The viability of pollen grains depends upon:
1. Prevailing temperature

2. Prevailing humidity

3. Genetic potentiality of the concerned species

4. All of the above

Which of the following has the least pollen viability?

1. Cereals like wheat and rice          

2. Members of Rosaceae

3. Members of Leguminoseae           

4. Members of Solanaceae

Match the Column-I with Column-II:
    Column-I                                          Column-II
A. Funicle                                 I. Mass of cells within ovule with more food
B. Hilum                                  II. Basal part of ovule
C. Integument                        III. One or 2 protective layers of ovule
D. Chalaza                              IV. Region where body of ovule fuses with funicle
E. Nucellus                               V. Stalk of ovule
1. A - I, B - II, C - III, D - IV, E - V           

2. A - V, B - IV, C - III, D - II, E - I

3. A - IV, B - II, C - I, D - III, E - V           

4. A - I, B - III, C - V, D - II, E - IV

Identify A, B, C and D structures shown in above diagram of female gametophyte:

Go through the following statements:

The above contrivances favour:

1. Allogamy                  

2.  Autogamy       

3. Xenogamy      

4. Cross pollination

Find out the correct option:
1. Among animals, insects, particularly bees are the dominant biotic pollinating agents

2. Often flowers of animal- pollinated plants are specially adapted for particular species of animals

3. In some species floral rewards like edible nectar, pollen grains, shelter for egg laying are given to pollinating animals

4. All the above are correct

Self-incompatibility:

1. All are correct                              

2. All are wrong

3. Only I, II, III are correct               

4. IV and V are wrong