Free Reproduction MCQs with Answers
1,220 Reproduction MCQs from Biology, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
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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Read the Reproduction notesFree MDCAT chapter notes with key terms1,220 questions · page 45 of 61
- A. Sertoli cells
- B. Connective tissue cells
- C. Intestinal cells
- D. Mast cells
Explanation: Spermatozoa are nourished during their development by sertoli cells. Sertoli cells are a type of cell that lines the seminiferous tubules…
Correct answer: Sertoli cells882. Number of spermatozoa that a single primary spermatocyte ultimately produces in spermatogenesis is
- A. One
- B. Four
- C. Two
- D. Eight
Explanation: A single primary spermatocyte ultimately produces 4 spermatozoa in spermatogenesis.This is because during spermatogenesis, a primary…
Correct answer: Four- A. At the beginning of the cycle
- B. About 20 days through the cycle
- C. About half way through the cycle
- D. At the end of the cycle
Explanation: The ovum or egg is released about halfway through the menstrual cycle, during ovulation.Ovulation is the process of the egg being released…
Correct answer: About half way through the cycle- A. Day 1
- B. Day 14
- C. Day 10
- D. Day 28
Explanation: Ovulation occurs on day 14 of a 28 day human ovarian cycle. This means that ovulation occurs halfway through the menstrual cycle.
Correct answer: Day 14- A. Corpus luteum
- B. Corpus albicans
- C. Corpus callosum
- D. Corpus spongiosum
Explanation: The endocrine part of the ovary after ovulation is the corpus luteum.The corpus luteum is a temporary endocrine gland that is formed from…
Correct answer: Corpus luteum- A. Estrogen
- B. Progesterone
- C. Relaxin
- D. Prolactin
Explanation: Progesterone is the hormone that prevents the production of ova during pregnancy.
Correct answer: Progesterone- A. Menstruation starts
- B. Menstruation stops and reproductive capacity is arrested
- C. Puberty begins
- D. None of the above
Explanation: Menopause is the stage in a woman's life when her ovaries stop producing eggs.
Correct answer: Menstruation stops and reproductive capacity is arrested- A. Haploid
- B. Triploid
- C. Diploid
- D. Polyploid
Explanation: The diploid spermatogonia undergoes mitosis to form diploid primary spermetocytes.
Correct answer: Diploid- A. Spermatids change into spermatozoa
- B. Dormant spermatozoa become active just before ejaculation
- C. Spermatogonia produce spermatids
- D. Spermetocytes give rise to spermatozoa
Explanation: Spermiogenesis is the last phase in the formation of spermatozoa. After spermiogenesis, mature spermatozoa are released from the…
Correct answer: Spermatids change into spermatozoa- A. Tail
- B. Mitochondria
- C. Cilia
- D. Acrosome
Explanation: Sperms move by the tail and the source of the motility and the driving energy is provided by the mitochondria.
Correct answer: Tail- 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.
Correct answer: Middle piece- A. Formation of ova
- B. Formation of spermatids
- C. Change of spermatid to spermatozoa
- D. Release of ova
Explanation: Gametogenesis is the process of formation of gametes. In males, it is known as spermatogenesis which is the formation of spermatozoa and…
Correct answer: Release of ova- A. Relaxin
- B. FSH
- C. Oxytocin
- D. Oestrogen
Explanation: The FSH stimulates the follicle cells to secrete estrogen a female sex organ.It stimulates the uterus to prepare for the implantation and…
Correct answer: Oestrogen- A. Premenstrual phase
- B. Proliferative phase
- C. Luteal phase
- D. Secretory phase
Explanation: This phase occurs earlier in the menstrual cycle, specifically in the days leading up to ovulation (around days 6-14).
Correct answer: Proliferative phase- A. FSH
- B. MSH
- C. STH
- D. LH
Explanation: During menopause, the level of estrogen in the blood decreases. Thus, estrogen can no longer inhibit the production of FSH and LH.
Correct answer: FSH- A. Head
- B. Entire sperm
- C. Middle piece
- D. Tail
Explanation: The middle piece of mammalian sperm cell possesses numerous mitochondria.
Correct answer: Middle piece- A. Estrogen
- B. Testosterone
- C. FSH
- D. ACTH
Explanation: Sertoli cells are the nurse cells which are associated with the cells of seminiferous tubules.
Correct answer: FSH898. On which date is a woman most likely to ovulate if the first day of menstrual loss was 1st February?
- A. 5th February
- B. 28th February
- C. 14th February
- D. 1st March
Explanation: In a typical 28-day menstrual cycle, ovulation occurs around the 14th day.
Correct answer: 14th February- A. Menstruation ---> Ovulation ---> Fertilization ---> Implantation
- B. Menstruation ---> Ovulation ---> Implantation ---> Fertilization
- C. Ovulation ---> Menstruation ---> Fertilization ---> Implantation
- D. Ovulation ---> Menstruation ---> Implantation ---> Fertilization
Explanation: The menstrual cycle may be divided into three parts:The menstrual phase (flow of blood), which lasts about 5 days on average.The…
Correct answer: Ovulation ---> Menstruation ---> Fertilization ---> Implantation- A. Nurse cells
- B. Receptor cells
- C. Reproductive cells
- D. None of these
Explanation: Sertoli cells are the nurse cells which are associated with the cells of seminiferous tubules.
Correct answer: Nurse cells