Question

(iii) List any two ‘out breeding devices’ in flowering plants. Explain why do plants develop such devices.

Hint:

Out breeding devices ensure genetic recombination, which strengthens plants' adaptability and resilience against environmental changes.

Answer 1

Mechanisms promoting cross-pollination: Self-incompatibility. Development of unisexual flowers. Rationale: These mechanisms inhibit self-pollination and encourage cross-pollination, thereby increasing genetic variation and improving adaptability.