Question

Siphonogamy is a reproductive process in plants that produce seeds. In this process, a pollen tube carries the sperm cells to the egg located within the integumented megasporangium. Which group of plants exhibit this process?

• A. Pteridophytes
• B. Bryophytes
• C. Thallophytes
• D. Gymnosperms

Answer 1

The correct option is D Gymnosperms

Gymnosperms are wind-pollinated plants. They do not have covering around seeds. They do not produce fruits or flowers. After pollination, they produce pollen tubes. This pollen tube carries the sperm cells to the egg. These eggs are located within the integument megasporangium. So, all these are the characteristics of gymnosperms.

So, option D "Gymnosperms" is the correct answer.