A) micropyle
B) chalaza
C) hilum
D) funicle
Correct Answer: A
Solution :
The pollen tube enters the ovule in majority of cases through micropyle by a process termed porogamy or it may enter through chalaza (chalazogamy) as in Casuarina. In rare cases the pollen tube may pierce through integuments (mesogamy) as in Populus, Cucurbita.
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