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Tick the correct statement

A

Proximal and distal centrioles in the middle piece of sperm help anchor the flagellum

B

whereas proximal entrioleis non functional, distal centriole acts as basal body for the flagellum of sperm

C

The functions of proximal and distal centriolesare not known

D

Proximal centriole forms the spindle fibreas during cleavage an the distal centriole anchors the flagellum of sperm

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The correct Answer is:
D
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