Which 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 & BiologyTransfer of pollen grains from the anther to the stigmaof another flower of the same plant is called
(1) xenogamy
(2) geitonogamy
(3) karyogamy
(4) autogamy
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWind pollinated flowers are
(1) small, brightly coloured, producing large number of pollen grains
(2) small, producing large number of dry pollen grains
(3) large, producing abundant nectar and pollen
(4) small, producing nectar and dry pollen
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology