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Sporopollenin of exine of pollen grain provides protection from
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Important Questions on Sexual Reproduction in Flowering Plants
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Which of the following plant came in India as a contaminant with important wheat and causes pollen allergy.
MEDIUM
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Give below the following statements
(a) In western countries, Pollen consumption has been claimed to increase the performance of athletes and race horses.
(b) The viability of pollen grains in some members of Rosaceae, Leguminosae and Solanaceae is few years.
(c) Multicarpellary and apocarpous gynoecium is found in Michelia.
(d) in pollen banks, the pollen grains of large no. of species can be stored in liquid nitrogen at -196°C.
(e) Micropyle represent the basal part of ovule.
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How many mitotic divisions are required for the formation of polygonum type of embryo sac from functional megaspore.
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Which of the following one protect the pollen grain from damaging effects of U.V. Radiations.
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In most of the water pollinated species, pollen grains are protected from wetting by
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In some plants like castor and maize, both male and female flowers are present on the same plants that is called monoecious which prevents
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On culturing the young anther of a plant a botanist got a few diploid plants along with haploid plants which of the following might have given the diploid plants:
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Cucurbita shows
