In Bougainvillea, thorns are the modifications of
(1) stipules
(2) adventitious root
(3) stem
(4) leaf
Coconut fruit is a
1. drupe
2. berry
3. nut
4. capsule
The term 'polyadelphous' is related to
1. gynoecium
2. androecium
3. corolla
4. calyx
How many plants among Indigofera, Sesbania, Salvia, Allium, Aloe, mustard, groundnut, raddish, 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
Tricarpellary, syncarpous and gynoecium is found in flowers of
1. Solanaceae
2. Fabaceae
3. Poaceae
4. Liliaceae
Cotyledon of maize grain is called
1. coleorhiza
2. coleoptile
3. scutellum
4. plumple
Which of the following is not a stem modification?
1. Thorns of citrus
2. Tendrils of cucumber
3. Flattened structures of Opunita
4. Pitcher of Nepenthes
Proximal end of the filament of stamen is attached to the
(1) connective
(2) placenta
(3) thalamus or petal
(4) anther