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Question

Which of these is a condition that makes flowers invariably autogamous?

A
Dioecy
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B
Self-incompatibility
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C
Cleistogamy
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D
Xenogamy
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Solution

The correct option is C Cleistogamy
Cleistogmous flowers do not open or bloom at all. Thus, they cannot receive foreign pollens and invariably show autogamy, i.e., self pollination. E.g.,Commellina, Viola and Oxalis.

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