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Biology · HSEXUAL REPRODUCTION IN FLOWERING PLANTS

हिन्दी

Which condition is observed in dioecious plants like papaya, and which forms of pollination are prevented by it?

  1. Male and female flowers on the same plant; prevents autogamy but not geitonogamy
  2. Male and female flowers on separate plants; prevents both autogamy and geitonogamy
  3. Bisexual flowers with heterostyly; prevents geitonogamy and xenogamy
  4. Bisexual flowers with protandry; prevents only xenogamy

Correct answer · Option 2

Male and female flowers on separate plants; prevents both autogamy and geitonogamy

Explanation

In dioecious plants like papaya, male and female flowers are borne on different individual plants (each plant is either male or female), which prevents both autogamy and geitonogamy.
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