61.Filiform apparatus is a characteristic feature of :-- (1)Suspensor
- (2)Egg
- (3)Synergid
- (4)Zygote
62.The term used for transfer of pollen grains from anthers of one plant to stigma of different plant which, during pollination, brings genetically different types of pollen grains to stigma, is:- (1)Geitonogamy
- (2)Chasmogamy
- (3)Cleistogamy
- (4)Xenogamy
63.Flowers which have single ovule in the ovary and are packed into inflorescence are usually pollinated by:- (1)Bee
- (2)Wind
- (3)Bat
- (4)Water
64.In general the egg apparatus of embryo sac in angiosperm consists of :- (1)One egg cell, two synergids, three antipodal cells, two Polar nuclei
- (2)One egg cell, two synergids, two antipodal cells, three polar nuclei
- (3)One egg cell, three synergids, two antipodal cells, two polar nuclei
- (4)One egg cell, two synergids two antipodal cells, two polar nuclei
65.Transmission tissue is characteristic feature of :-- (1)Solid style
- (2)Dry stigma
- (3)Wet stigma
- (4)Hollow style
66.The body of the ovule is fused within the funicle at:- (1)Chalaza
- (2)Hilum
- (3)Micropyle
- (4)Nucellus
67.The wheat grain has an embryo with one large, shield-shaped cotyledon known as :- (1)Coleoptile
- (2)Epiblast
- (3)Coleorrhiza
- (4)Scutellum
68.What is common between vegetative reproduction and apomixis?- (1)Both are applicable to only dicot plants
- (2)Both bypass the flowering phase
- (3)Both occur round the year
- (4)Both produce progeny identical to the parent
69.Attractants and rewards are required for :- (1)Entomophily
- (2)Hydrophily
- (3)Cleistogamy
- (4)Anemophily
70.Transmission tissue is the characteristic feature of- (1)Hollow style
- (2)Solid style
- (3)Dry stigma
- (4)Wet stigma
71.Vegetative propagules in Agave is termed as :- (1)Rhizome
- (2)Bulbil
- (3)Offset
- (4)Eye
72.What type of pollination takes place in Vallisneria?- (1)Pollination occurs in submerged condition by water
- (2)Flowers emerge above surface of water, and pollination occurs by insects.
- (3)Flowers emerge above water surface, and pollen is carried by wind.
- (4)Male flowers are carried by water currents to female flowers at surface of water
73.In some plants, the female gamete develops into embryo without fertilization. This phenomenon is known as :- (1)Autogamy
- (2)Parthenocarpy
- (3)Syngamy
- (4)Parthenogenesis
74.Seed formation without fertilization in flowering plants involves the process of :-- (1)Sporulation
- (2)Budding
- (3)Somatic hybridization
- (4)Apomixis
75.The function of filiform apparatus is to- (1)Recognize the suitable pollen at stigma
- (2)Stimulate division of generative cell
- (3)Produce nectar
- (4)Guide the entry of pollen tube
76.Which is the most common type of embryo sac in angiosperms?- (1)Tetrasporic with one mitotic stage of divisions
- (2)Monosporic with three sequential mitotic divisions
- (3)Monosporic with two sequential mitotic divisions
- (4)Bisporic with two sequential mitotic divisions
77.Which one of the following statements is correct?- (1)Tapetum nourishes the developing pollen
- (2)Hard outer layer of pollen is called intine
- (3)Sporogenous tissue is haploid
- (4)Endothecium produces the micorspores
78.In a Cereal grain the single cotyledon of embryo is represented by- (1)Coleorrhiza
- (2)Scutellum
- (3)Prophyll
- (4)Coleoptile
79.Plants which produce characteristic pneumatophores and show vivipary belong to :- (1)Halophytes
- (2)Psammophytes
- (3)Hydrophytes
- (4)Mesophytes
80.Which of the following are the important floral rewards to the animal pollinators?- (1)Colour and large size of flower
- (2)Nectar and pollen grains
- (3)Floral fragrance and calcium crystals
- (4)Protein pellicle and stigmatic exudates
81.What would be the number of chromosomes of the aleurone cells of a plant with 42 chromosomes in its root tip cells?- (1)63
- (2)84
- (3)21
- (4)42
82.In which of the following fruits is the edible part the aril?- (1)Litchi
- (2)Custard apple
- (3)Pomegranate
- (4)Orange
83.Pollen tablets are available in the market for :- (1)In vitro fertilization
- (2)Breeding programmes
- (3)Supplementing food
- (4)Ex situ conservation
84.The gynoecium consists of many free pistils in flowers of :-- (1)Papaver
- (2)Michelia
- (3)Aloe
- (4)Tomato
85.In some plants thalamus contributes to fruit formation. Such fruits are termed as- (1)Aggregate fruits
- (2)True fruits
- (3)Parthenocarpic fruit
- (4)False fruits
86.Which one of the following generate new genetic combinations leading to variation?- (1)Parthenogenesis
- (2)Sexual reproduction
- (3)Nucellar polyembryony
- (4)Vegetative reproduction
87.An organic substance that can withstand environmental extremes and cannot be degraded by any enzyme is- (1)Cuticle
- (2)Sporopollenin
- (3)Lignin
- (4)Cellulose
88.The coconut water and the edible part of coconut are equivalent to- (1)Endosperm
- (2)Endocarp
- (3)Mesocarp
- (4)Embryo
89.Megasporangium is equivalent to :- (1)Ovule
- (2)Embryo sac
- (3)Fruit
- (4)Nucellus
90.The advantage of cleistogamy is- (1)Higher genetic variability
- (2)More vigorous offspring
- (3)No dependence on pollinators
- (4)Vivipary
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