Function of filiform apparatus is to
(1) recognise the suitable pollen at stigma
(2) stimulate division of generative cell
(3) produce nectar
(4) guide the entry of pollen tube
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyNon-albuminous seed is produced in
(1) maize
(2) castor
(3) wheat
(4) pea
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich one of the following statement is correct?
(1) Hard outer layer of pollen is called intine
(2) Sporogenous tissue is haploid
(3) Endothecium produces the microspores
(4) Tapetum nourishes the developing pollen
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAn organic substance that can withstand environmental extremes and cannot be degraded by any enzyme is
(1) cuticle
(2) sporopollenin
(3) lignin
(4) cellulose
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyEven in absence of pollinating agents seed-setting is assured in
(1) Commellina
(2) Zostera
(3) Salvia
(4) fig
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe coconut water and the edible part of coconut are equivalent to
(1) endosperm
(2) endocarp
(3) mesocarp
(4) embryo
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWind pollination is common in
(1) lilies
(2) grasses
(3) orchids
(4) legumes
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyNucellar polyembryony is reported in species of
(1) Gossypium
(2) Triticum
(3) Brassica
(4) Citrus
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn which one of the following pollination is autogamous?
(1) Xenogamy
(2) Chasmogamy
(3) Cleistogamy
(4) Geitonogamy
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyApomictic embryos in Citrus arise from
(1) synergids
(2) maternal sporophytic tissue in ovule
(3) antipodal cells
(4) diploid egg
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology