Functional megaspore in an angiosperm develops into
(1) ovule
(2) endosperm
(3) embryo sac
(4) embryo
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe morphological nature of the edible part of coconut is
(1) perisperm
(2) cotyledon
(3) endosperm
(4) pericarp
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAttractants and rewards are required for
(1) anemophily
(2) entomophily
(3) hydrophily
(4) cleistogamy
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn majority of angiosperms
(1) egg has a filiform apparatus
(2) there are numerous antipodal cells
(3) reduction division occurs in the megaspore mother cells
(4) a small central cell is present in the embryo sac
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyPollination in water hyacinth and water lily is brought about by the agency of
(1) water
(2) insects or wind
(3) birds
(4) bats
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich one of the following statements is not true?
(1) Exine of pollen grains is made up of sporopollenin
(2) Pollen grains of many species cause severe allergies
(3) Stored pollen in liquid nitrogen can be used in the crop breeding programmes
(4) Tapetum helps in the dehiscence of anther
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe coconut water from tender coconut represents
(1) fleshy mesocarp
(2) free-nuclear proembryo
(3) free-nuclear endosperm
(4) endocarp
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following statements is not correct?
(1) Insects that consume pollen or nectar without bringing about pollination are called pollen nectar robbers
(2) Pollen germination and pollen tube growth are regulated by chemical components of pollen interacting with those of the pistil
(3) Some reptiles have also been reported as pollinators in some plant species
(4) Pollen grains of many species can germinate on the stigma of a flower, but only one pollen tube of the same species grows into the style
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologySeed formation without fertilisation in flowering plants involves the process of
(1) budding
(2) somatic hybridization
(3) apomixis
(4) sporulation
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyFiliform apparatus is characteristic feature of
(1) generative cell
(2) nucellar embryo
(3) aleurone cell
(4) synergids
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology