The term used for transfer of pollen grains from anthers of one plant to stigma of a different plant which during pollination, brings genetically different types of pollen grains to stigma, is:
(2021)
A typical angiosperm embryo sac at maturity is:
(2021)
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In some members of which of the following pairs of families, pollen grains retain their viability for months after release?
(2021)
In water hyacinth and water lily, pollination takes place by:
(2020)
The plant parts which consists of two generation one within the other: (2020)
(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
In some plants, the thalamus contributes to fruit formation. Such fruits are termed as: (2020)
What type of pollination takes place in Vallisneria?
(2019)
Persistent nucellus in the seed is known as: (2019)
Which one of the following, both autogamy and geitonogamy are prevented?
(2019)
Which of the following has proved helpful in preserving pollen as fossils?
(2018)
Double fertilisation is
(2018)
Which of the following statements is not correct? [2016]
Which one of the following statements is not true? [2016]
Filiform apparatus is characteristic feature of: [2015 RS]
Which of the following are the important floral rewards to the animal pollinators? [2015 RS]
The hilum is a scar on the: [2015 RS]
Which one of the following statements is not true? [2015 RS]
Which one of the following may require pollinators, but is genetically similar to autogamy? [2015 RS]
Function of filiform apparatus is to: [2014]
Which of the following layers in the wall of an anther nourishes the developing pollen grains?
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