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A dioecious flowering plant prevents both :
  • a)
    Autogamy and geitonogamy
  • b)
    Geitonogamy and xenogamy
  • c)
    Cleistogamy and xenogamy
  • d)
    Autogamy and xenogamy
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
A dioecious flowering plant prevents both :a)Autogamy and geitonogamyb...
Dioecious flowering plants prevent both Autogamy and Geitonogamy

Dioecious plants are those in which male and female flowers are present on separate plants. These plants prevent self-fertilization and promote cross-fertilization. The two types of self-fertilization that are prevented in dioecious plants are Autogamy and Geitonogamy.

Autogamy: Autogamy is a type of self-fertilization in which the pollen from the same flower is transferred to the stigma of the same flower or to different flowers on the same plant. In dioecious plants, male and female flowers are present on separate plants, so autogamy is not possible.

Geitonogamy: Geitonogamy is a type of self-fertilization in which the pollen from one flower is transferred to the stigma of another flower on the same plant. In dioecious plants, male and female flowers are present on separate plants, so geitonogamy is not possible.

Therefore, dioecious plants prevent both Autogamy and Geitonogamy, which promotes cross-fertilization and genetic diversity. This ensures that the offspring have a better chance of survival and adaptation to changing environmental conditions.
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A dioecious flowering plant prevents both :a)Autogamy and geitonogamyb)Geitonogamy and xenogamyc)Cleistogamy and xenogamyd)Autogamy and xenogamyCorrect answer is option 'A'. Can you explain this answer?
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