Class 12 Botany simulations · Sexual Reproduction in Flowering Plants

Double fertilisation

Follow a pollen tube down the style into the embryo sac, where two male gametes take part in two separate fusions.

Open the simulation

What to notice

Double fertilisation — two fusions in one embryo sac — is unique to flowering plants.

Key relation

Syngamy: n + n → 2n zygote ; triple fusion: n + n + n → 3n PEN

Try this

Pause at triple fusion. Which three nuclei fuse?

What you can change

• Speed: 0.3 to 2 ×

More in Sexual Reproduction in Flowering Plants

• Development of the embryo sac
• Kinds and agents of pollination

See all Class 12 Botany simulations or every Physica simulation.