A) centriole, mitochondria and 9+2 arrangement of microtubules
B) centriole and mitochondria
C) mitochondria and 9+2 arrangement of micro tubules
D) 9+2 arrangement of microtubules only
Correct Answer: A
Solution :
The body of a mature sperm can be divided into head, neck, middle piece and tail. Middle piece is a portion of sperm, where the axial filament is covered by the helicular structure of mitochondria. A cross section at the mid-point of the middle piece of a sperm will show mitochondria centriote and 9 + 2 arrangement of microtubules.
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