NEET 2017 Biology question

A dioecious flowering plant prevents both:

(1)Autogamy and xenogamy
(2)Autogamy and geitonogamyCorrect
(3)Geitonogamy and xenogamy
(4)Cleistogamy and xenogamy

Answer: (2)

Solution

In a dioecious plant, male and female flowers are borne on different plants. Since pollen from a male plant can never reach the stigma of the same plant, both autogamy (same flower) and geitonogamy (different

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Question ID VK-092121