When pollen tube enters through the base of a funiculus or the integument the phenomenon is known as

Porogamy

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Chalazogamy

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Mesogamy

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Isogamy

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Solution

The correct option is C Mesogamy
When pollen tube enters through the micropyle, the phenomenon is known as porogamy. When pollen tube enters to the embryo sac through the tissue of the chalaza, the phenomenon is known as chalazogamy. When pollen tube enters through the base of a funiculus or the integument, the phenomenon is known as mesogamy. Isogamy is a form of sexual reproduction that involves fusion of gametes of similar size and structure.
Thus, the correct answer is option C.

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