Question

Why are seeds produced through cross-pollination larger and more viable than those from self-pollination?

Options

• External pollinating agents increase seed size directly

• More pollen production guarantees larger seeds

• Larger flowers automatically produce larger seeds

• Genetic recombination from two different plants produces healthier seeds with greater viability

Answer 1

Seeds produced through cross-pollination are larger, more viable, and germinate better because genetic recombination from two genetically different parents produces offspring with increased genetic heterozygosity. This genetic diversity results in hybrid vigour, where offspring are more robust and have greater physiological capacity for growth and survival.