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Describe the post fertilization changes ...

Describe the post fertilization changes in a flower.

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Zygote is formed inside the ovule and develops into embryo.
Ovule develops into seed.
Ovary develops into fruit, ovary wall become pericarp which enlcloses seeds.
Nucellus persistent in seeds of som especies and known as perisperm.
The sepals, petals and stamens wither and fall off.
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