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Earn 100
The celled egg apparatus at the micropylar end comprises of
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Important Questions on Structural Organisation in Plants
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Which one of the following is NOT a mode of asexual reproduction?
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In the majority of angiosperms:
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The hard outer layer of pollens, named exine, is made of
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The body of the ovule is fused within the funicle at
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Which is the most common mechanism of genetic variation in the population of sexually-reproducing organism?
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Pollen tablets are available in the market for:
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Which one of the following generates new genetic combinations leading to variation?
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If we explore anther wall from outside to inside then which sequence will be correct?
A- Endothecium
B- Tapetum
C- Epidermis
D- Middle Layer
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The hilum is a scar on the:
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Which one of the following statements is not true?
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The plant parts which consist of two generations one within the other:
(a) Pollen grains inside the anther
(b) Germinated pollen grain with two male gametes
(c) Seed inside the fruit
(d) Embryo sac inside the ovule
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Male gametophyte in angiosperms produces :
MEDIUM
The Campylotropous ovule is characterized by _____.
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Functional megaspore in an angiosperm develops into:
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Ubisch bodies are produced from ___.
MEDIUM
Choose the correct statement.
A) Several hormonal and structural changes are initiated for the development of floral primordium.
B) Each anther will have two sporangia at the sides.
C) Stomium will be useful for the dehiscence of pollen sacs.
D) Pollen grains can be stored at .
E) Pollen viability in rice will be days.
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During an excavation of soil, pollen fossil were retrieved from deepest layer of soil. The pollen grains remained fossils because:
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The ovule of an angiosperm is technically equivalent to
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In Angiosperms, microsporogenesis and megasporogenesis:
HARD
Which one of the following statements is not true?
