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Fertilization involving carrying of male gametes by pollen tube is

1. Porogamy
2. Siphonogamy
3. Chalazogamy
4. Syngonogamy

Correct answer: Siphonogamy

Solution

Siphonogamy is fertilization in which the male gametes are carried to the egg through a pollen tube. This is the common mode in seed plants, unlike porogamy or chalazogamy which describe the route of entry into the ovule.

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