Question

Entry of pollen tube through micropyle is

• A. Chalazogamy
• B. Mesogamy
• C. Porogamy
• D. Pseudogamy

Answer 1

The correct option is C Porogamy

Pollen tube eventually reaches the micropyle of an ovule and for this purpose, it may follow one of the following three routes:

1. Porogamy - When the pollen tube enters the ovule through micropyle. It is common for most of the angiosperms.

2. Mesogamy - When the pollen tube enters through the integuments (e.g Cucurbita) or through funiculus (Pistacia).

3. Chalazogamy - When the pollen tube enters through the chalazal tissues e.g. Casuarina

So, the correct answer is 'Porogamy'