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In which of the following condition, autogamy is prevented but not geitonogamy?

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Important Questions on Sexual Reproduction in Flowering Plants

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Biology>Reproduction>Sexual Reproduction in Flowering Plants>Pre-Fertilization Events in Plants
In Angiosperms, microsporogenesis and megasporogenesis:
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Biology>Reproduction>Sexual Reproduction in Flowering Plants>Pre-Fertilization Events in Plants
Which of the following statements is not correct?
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Biology>Reproduction>Sexual Reproduction in Flowering Plants>Pre-Fertilization Events in Plants
Male gametophyte in angiosperms produces :
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Biology>Reproduction>Sexual Reproduction in Flowering Plants>Pre-Fertilization Events in Plants
Which one of the following statements is not true?
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Biology>Reproduction>Sexual Reproduction in Flowering Plants>Pre-Fertilization Events in Plants
Select the incorrect statement related to outbreeding devices in plants.
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Biology>Reproduction>Sexual Reproduction in Flowering Plants>Pre-Fertilization Events in Plants
Which one of the following may require pollinators, but is genetically similar to autogamy?
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Biology>Reproduction>Sexual Reproduction in Flowering Plants>Pre-Fertilization Events in Plants
Filiform apparatus is characteristic features of:
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Biology>Reproduction>Sexual Reproduction in Flowering Plants>Pre-Fertilization Events in Plants
Flowers which have single ovule in the ovary and are packed into inflorescence are usually pollinated by
HARD
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Pre-Fertilization Events in Plants
A dioecious flowering plant prevents both:
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Biology>Reproduction>Sexual Reproduction in Flowering Plants>Pre-Fertilization Events in Plants
Describe any two devices in a flowering plant which prevent both autogamy and geitonogamy.
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Biology>Reproduction>Sexual Reproduction in Flowering Plants>Pre-Fertilization Events in Plants
The ovule of an angiosperm is technically equivalent to
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Biology>Reproduction>Sexual Reproduction in Flowering Plants>Pre-Fertilization Events in Plants

In some plants stigma and anther mature at different times because.

*Note- The incorrect answer was marked. It has been changed. 

EASY
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Pre-Fertilization Events in Plants
In the majority of angiosperms:
EASY
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Pre-Fertilization Events in Plants
Which of the following are the important floral rewards to the animal pollinators?
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Biology>Reproduction>Sexual Reproduction in Flowering Plants>Pre-Fertilization Events in Plants
Pollination in water hyacinth and water lily is brought about by the agency of:
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Biology>Reproduction>Sexual Reproduction in Flowering Plants>Pre-Fertilization Events in Plants
Attractants and rewards are required for:
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Biology>Reproduction>Sexual Reproduction in Flowering Plants>Pre-Fertilization Events in Plants
Functional megaspore in an angiosperm develops into:
HARD
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Pre-Fertilization Events in Plants
Which one of the following statements is not true?
EASY
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Pre-Fertilization Events in Plants
Identify the difference between herkogamy and decliny in out breeding process respectively.
A) Anther and stigma are placed at different positions.
B) Pollen release and stigma receptivity are not synchronised.
C) Production of unisexual flowers.
D) Pollen release and stigma receptivity are synchronised.
MEDIUM
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Pre-Fertilization Events in Plants
Identify the correct order of events in pollen-pistil interaction from the options given below:
I. Release of male gametes into the embryo sac.
II. Deposition of pollen grains on stigma.
III. Entry of pollen tube into embryo sac.
IV. Development of pollen tube.
V. Entry of pollen tube into the Ovule.