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Question

The entry of pollen tube into the ovule through micropyle is called

A
porogamy
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B
mesogamy
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C
chalazogamy
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D
All of the above
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Solution

The correct option is A porogamy
When the entry of pollen tube to the ovule is through micropylar end, it is called porogamy. In chalazogamy (or basigamy), pollen tube enters the ovule by the chalazal end. If the pollen tube enters through the integuments it is called mesogamy

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