Question

The phenomenon of pollen tube entering the ovule laterally through integuments is called

• A. Mesogamy
• B. Aporogamy
• C. Chalazogamy
• D. Vegetative fertilization

Answer 1

Answer: (A)

Mesogamy

•Mesogamy is the entry of pollen tube through the integuments.

•Aporogamy is the condition in which pollen tube enters the ovule through a path other than micropyle.

•Chalazogamy is the entry of pollen tube through chalaza.

•Vegetative fertilisation is a part of double fertilisation in Angiosperms, in which one of the two male gametes fuses with the diploid secondary nucleus and this results in the formation of a triploid primary endosperm mother cell. It is also known as triple fusion.

So, the correct answer is A.