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Both, autogamy and geitonogamy are preve...

Both, autogamy and geitonogamy are prevented in

A

Papaya

B

cucumber

C

Castor

D

Maize

Text Solution

Verified by Experts

The correct Answer is:
A
Papaya is dioecious so that it prevents both Autogamy and geitonogamy (method of self pollination)
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Explore conceptually related problems

Autogamy as well as geitonogamy is prevented in

Geitonogamy is

(a) Describe any two devices in a flowering plant which prevent both autogamy and geitonogamy. (b) Explain the events upto double fertilization after the pollen tube enters one of the synergids in an ovule of an angiosperm .

Geitonogamy is:

Assertion :- In monoecious plants neither autogamy nor geitonogamy can be observed. Reason :- In monoecious plants male and female flowers produce on different plants

Autogamy means

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.

ERRORLESS -SEXUAL REPRODUCTIO IN FLOWERING PLANTS-Sexual Reproductio In Flowering Plants
  1. Intra- species incompatibility can be overcome by

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  2. When anthers and stigma mature at the same time it is called

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  3. Both, autogamy and geitonogamy are prevented in

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  4. In which one of the following pollination is autogamous or Pollination...

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  5. The pollination of two flowers on different plants is known as or The ...

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  6. Animal vectors are required for pollination in

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  7. The below figure shows 2 plants of the same species identify the types...

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  8. Pollination in water hypacinth and water lily is brought about by the ...

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  9. A dioecious flowering plant prevents both

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  10. Attractants and reward are required for

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  11. Which of the following has proved helpful in preserving pollen of foss...

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  12. Pollen grains can be stored for several years in liquid nitrogen havin...

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  13. The ovary after fertilization is converted into

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  14. Micropyle of seed facilitates in the entry of:

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  15. The given figure is associated to double fertilization A, B, C, D, E, ...

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  16. when the pollen tube enters through the micropyle it is termed as

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  17. Female gametophyte of a typical dicot at the time of fertilization is

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  18. Which of the following events takes place after double fertilization

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  19. Double fertilization was discovered by

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  20. When pollen tube enters by integuments then the process is called

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