Understand the unique angiosperm event of double fertilisation and the early development of the embryo and endosperm.
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Angiosperms have a unique double-fusion event.
Syngamy and Triple Fusion defined.
When the pollen tube enters the ovule, it releases two male gametes into one of the synergids. This sets the stage for a unique, two-step event that defines reproduction in flowering plants.
How the zygote and PEN develop post-fertilisation.
Why does endosperm development happen before the embryo starts growing? It is a brilliant evolutionary adaptation to guarantee a reliable food supply! The embryo waits to divide until enough endosperm is formed to ensure it has the nutrients to survive.
Side-by-side comparison of dicot and monocot embryonic structures.
Side-by-side comparison showing the dual cotyledons of dicots versus the single scutellum and specialized sheaths of monocots.
Order the stages of embryo development.
Drag and drop the stages of embryogeny into the correct chronological sequence, starting from the newly fertilized cell.