Which part of sperm enters the ovum during fertilization?
Correct answer: A. Head only
- A. Head only
- B. Head and middle piece
- C. Whole sperm
- D. Acrosome only
Explanation
Only the head (with nucleus) enters ovum; tail is left outside.
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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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