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 

In some plants, the thalamus contributes to fruit formation. Such fruits are termed as:

1. False fruits

2. Aggregate fruits

3. True fruits

4. Parthenocarpic fruits

Persistent nucellus in the seed is known as:

Which of the following set represents the correct labelling of A,B, C and D with respect to the given diagram? 
         
1. A- Seed Coat,  B- Cotyledon, C- Endosperm, D - Hypocotyle 
2. A -Seed Coat,  B- Scutellum, C- Endocarp, D - Mesocarp
3. A- Seed Coat,  B- Scutellum, C- Microphyle, D - Endocarp 
4. A-Pericarp, B - Coleoptile