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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

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

B

The filiform apparatus of synergids is believed to attract the pollen tube

C

It has no other passage to follow

D

It grows under control of nucleus

Text Solution

Verified by Experts

The correct Answer is:
B
The pollen tube usually grows down toward the egg Because of filliform apparatus. It is outer wall of synergids. Synergids absorb food from the nucellus. Filliform also secrete chemicals which attach the pollen tube.
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