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Assertion :- Geitonogamy is functionaly ...

Assertion :- Geitonogamy is functionaly cross pollination and genetically self pollination.
Reason :- It involves pollinating agent but pollen grains come from same plant

A

A

B

B

C

C

D

D

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Explain how geitonogamy is functionally similar to cross pollination and genetically similar to self pollination ?

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Knowledge Check

  • Assertion : Geitonogamy is functionally cross-pollination involving pollinating agent and genetically it is similar to autogamy since the pollen grains come from the another plant. Reason : Geitonogamy is the only type of pollination which during pollination brings genetically different types of pollen grains to the stigma.

    A
    If both assertion and reason are true and the reason is the correct explanation of the assertion.
    B
    If both assertion and reason are true but reason is not the correct explanation of the assertion.
    C
    If assertion is true but reason is false
    D
    If both assertion and reason are false.

  • Pollination occurs when a pollen grain

    A
    Matures and has three nuclei
    B
    Lands on a stigma
    C
    Releases it sperm nuclei
    D
    Releases its pollen tube nucleus

  • Cross pollination is preferred over self pollination because it

    A
    Produces better offspring
    B
    Forms new varieties
    C
    Induces parthenogenesis
    D
    Is economical.

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    Assertion : Although geitonogamy is functionally crosspollination involving a pollinating agent, genetically it is similar to autogamy. Reason : In geitonogamy, pollen grains from the anthers of one flower are transferred to the sigma of another flower borne on the same plant.

    Wind pollination requires that the pollen grains are

    In angiosperms pollination occurs when pollen grains are in

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