Question

In mesogamy, pollen tube enters the ovule through

• A. Middle of integuments after piercing the tissues
• B. Middle of integuments without piercing the tissues
• C. Chalaza
• D. Middle of micropyle

Answer 1

Answer: (A)

Middle of integuments after piercing the tissues

Mesogamy is the entry of pollen tube in the ovule through the integuments. The pollen tube enters the ovule laterally through integuments by piercing the tissue in the middle and finally enters the embryo sac through micropylar pole, whereas, entry of pollen tube through chalaza is called chalazogamy and through micropyle is called porogamy.

So, the correct answer is A.