In a mammalian sperm, spirally arranged mitochondria around an axial filament occur in:
Correct answer: A. Middle piece
- A. Middle piece
- B. Principal piece of tail
- C. Head
- D. End piece of tail
Explanation
Microtubules form the axial filament and it contains the mitochondria spirally arranged in it. The process begins at the age of 14 in man and continue throughout the life. The mitochondrion is present in the middle piece which is spirally arranged in it. It provides the energy to the sperm for the motility. To see more details have a look on the below diagram/structure if the sperms!See KPK book for ref. at page no. 156
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Human reproduction covers the male and female reproductive organs, gamete formation, fertilization, implantation and hormonal regulation. The menstrual cycle includes ovarian and uterine changes controlled by pituitary and ovarian hormones, while sexually transmitted diseases are studied through their causes, transmission, symptoms, prevention and effects on fertility.
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