First slide

Post-fertilisation: Structures and Events

Question

In free-nuclear endosperm

Easy

A

PEN undergoes nuclear divisions and wall formation simultaneously.
B

PEN undergoes successive nuclear divisions to give rise to free nuclei.
C

first division is followed by a transverse wall resulting in a micropylar and a chalazal chamber.
D

it is a very rare type of endosperm.

Solution

In free-nuclear endosperm PEN undergoes successive nuclear divisions to give rise to free nuclei. It is a common type of endosperm formation.
On the other hand in helobial type of endosperm first division is followed by a transverse wall resulting in a micropylar and a chalazal chamber.

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