How many plants among Indigofera, Sesbania, Salvia, Allium, Aloe, mustard, groundnut, radish, gram and turnip have stamens with different lengths in their flowers?

1.  Three

2.  Four

3.  Five

4.  Six

Radial symmetry is found in the flowers of?

1. Brassica

2. Trifolium

3. Pisum

4. Cassia

Free-central placentation is found in?

1. Dianthus

2. Argemone

3. Brassica

4. Citrus

Coconut fruit is a:

1. Berry

2. Nut

3. Capsule

4. Drupe

In Bougainvillea thorns are the modifications of:

1. Adventitious root

2. Stem

3. Leaf

4. Stipules

Root hairs develop from the region of:

1. Elongation

2. Root cap

3. Meristematic activity

4. Maturation

The morphological nature of the edible part of coconut is:

1. Cotyledon

2. Endosperm

3. Pericarp

4. Perisperm