Inflorescence of which one of the following sets completely develop into composite fruits?
(1) Spike, corymb, hypanthodium
(2) Spike, female catkin, hypanthodium
(3) Umbel, catkin, spadix
(4) Female catkin, corymb, spike
The small projections present on the surface of pineapple fruit represent
(1) persistent styles
(2) persistent stamens
(3) persistent calyx
(4) persistent bracts
'Cladode' is a characteristic morphological feature of
(1) Asparagus and Ruscus
(2) Casuarina and Opuntia
(3) Cladophora and Cactus
(4) Citrus and Euphorbia
Which one contain most reduced form of stem?
(1) Bulb
(2) Rhizome
(3) Tuber
(4) Twinner
Which one is a source of commercially important product Syzygium aromaticum?
(1) Flower bud
(2) Axillary bud
(3) Thalamus
(4) Peduncle
Pappus helps in dispersal of pollen in
(1) Asteraceae
(2) Brassicaceae
(3) Malvaceae
(4) Solanaceae
Flower of Liliaceae is
(1) actinomorphic
(2) epipetalous
(3) pentamerous
(4) imperfect
A fruit developed from a condensed inflorescence is
(1) simple fruit
(2) aggregate fruit
(3) composite fruit
(4) etaerio
The floral formula represents
(1) Solanum nigrum
(2) Hibiscus rosa-sinensis
(3) Citrus aurantum
(4) Brassica campestirs
Which of the following is incorrect about A, B, C and D:
(1) Tap roots of carrot, turnip and adventitious root of sweet potato, get swollen and store food
(2) Pneumatophores help to get oxygen for respiration
(3) Pneumatophore is found in the plants that grow in sandy soil
(4) A, B and C are underground roots but D grows vertically upwards