Human Reproduction Question 21
21. Middle piece of mammalian sperm possesses
(a) mitochondria and centriole
(b) mitochondria only
(c) centriole only
(d) nucleus and mitochondria
Show Answer
Answer : a
Hints & Solutions
(a) Sperm has : (i) head in which acrosome & nucleus are present
(ii) middle piece in which it contains many mitochondria
(iii) A long & highly motile tail.
(A short neck is also present between middle piece & head which has centrioles and may sometimes regarded as a part of middle piece)
