Analyse and answer the case-based question:
Pollination is an important process in sexual reproduction of plants. It is an essential process that facilitates fertilisation in plants. Pollinating agents can be wind,water, insects and birds. Several changes take place in the flower after the fertilization has taken place.
a. Write the main difference between self-pollination and cross-pollination.
b. Name the part of the flower which attracts insects for pollination. What happens to this part after fertilisation?
a. Write the main difference between self-pollination and cross-pollination.
b. Name the part of the flower which attracts insects for pollination. What happens to this part after fertilisation?
a. Difference between self-pollination and cross pollination:
Self-pollination is transferring pollen grains from the . This process occurs in genetically identical plants and does not require external pollinating agents. Example: Orchids.
Cross-pollination occurs transferring pollen grains from the when pollen grains from . This process involves genetically different plants of the same species and requires external pollinating agents such as water, wind, or insects. Example: Papaya plant.
Self-pollination is transferring pollen grains from the . This process occurs in genetically identical plants and does not require external pollinating agents. Example: Orchids.
Cross-pollination occurs transferring pollen grains from the when pollen grains from . This process involves genetically different plants of the same species and requires external pollinating agents such as water, wind, or insects. Example: Papaya plant.
b. The of a flower attract insects for pollination. The petals fall off after fertilization because they serve the function of attracting pollinators and protecting the ovary.