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In which of the following the pollen tube enters via chalaza?
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The correct answer is:
Casuarina
There are three possible ways for the pollen tube to enter the embryo sac:
1. In most of the cases, a pollen tube enters through Micropyle, called Porogamy (as seen in Ottelia).
2. In Casuarina, the pollen tube enters through chalaza, called Chalazogamy.
3. In Cucurbita, the pollen tube enters through integuments or funicle, called mesogamy.
1. In most of the cases, a pollen tube enters through Micropyle, called Porogamy (as seen in Ottelia).
2. In Casuarina, the pollen tube enters through chalaza, called Chalazogamy.
3. In Cucurbita, the pollen tube enters through integuments or funicle, called mesogamy.
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