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After penetrating stigmtic and stylar ti...

After penetrating stigmtic and stylar tissue, the pollen tube usually grows downwards towards egg because

A

It has no other passage to follow

B

It grows under the control of egg nucleus

C

The egg cell attracts the pollen tubes as they have dissimilar electric charge

D

The filiform apparatus of synergids are believed to attract the pollen tubes

Text Solution

Verified by Experts

The correct Answer is:
D
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