Question

Commonly the pollen tube enters the ovule through

• A. Hilum
• B. Chalaza
• C. Funicle
• D. Micropyle

Answer 1

Answer: (D)

Micropyle

Pollen tube may enter the ovule via any of the following routes:

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

2. Mesogamy- when the pollen tube enters through the integuments or through funiculus.

3. Chalazogamy- when the pollen tube enters through the chalazal tissues.

Thus, pollen tube commonly enters the ovule through micropyle.

So, the correct answer is D.