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

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The small projections present on the surface of pineapple fruit represent

(a) persistent styles

(b) persistent stamens

(c) persistent calyx

(d) persistent bracts

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'Cladode' is a characteristic morphological feature of

(1) Asparagus and Ruscus

(2) Casuarina and Opuntia

(3) Cladophora and Cactus

(4) Citrus and Euphorbia

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Which one contain most reduced form of stem?

(1) Bulb

(2) Rhizome

(3) Tuber

(4) Twinner

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Which one is a source of commercially important product Syzygium aromaticum?

(1) Flower bud

(2) Axillary bud

(3) Thalamus

(4) Peduncle

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Pappus helps in dispersal of pollen in

(1) Asteraceae

(2) Brassicaceae

(3) Malvaceae

(4) Solanaceae

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Flower of Liliaceae is

(1) actinomorphic

(2) trimerous

(3) pentamerous

(4) imperfect

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A fruit developed from a condensed inflorescence is

(1) simple fruit

(2) aggregate fruit

(3) composite fruit

(4) etaerio

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The floral formula  represents

(1) Solanum nigrum

(2) Hibiscus rosa-sinensis

(3) Citrus aurantum

(4) Brassica campestirs

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Which of the following is incorrect about A, B, C and D:
(a) Tap roots of carrot, turnip and adventitious root of sweet potato, get swollen and store food
(b) Pneumatophores help to get oxygen for respiration
(c) Pneumatophore is found in the plants that grow in sandy soil
(d) A, B and C are underground roots but D grows vertically upwards

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