Question

Middle piece of mammalian sperm possesses
(a) mitochondria and centriole
(b) mitochondria only
(c) centriole only
(d) nucleus and mitochondria

Answer 1

Answer:

A) Mitochondria and centriole

Explanation:

The middle piece of human sperm contains the mitochondria coiled around the axial filament called mitochondrial spiral. They provide energy for the movement of the sperm. At the end of the middle piece there is a ring centriole (annulus) with unknown functions.

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