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 5 of 61
- A. I only
- B. II only
- C. I and II
- D. II and III
Explanation: The correct answer is II and III. Sertoli cells are responsible for providing structural and metabolic support to spermatogenic cells and…
Correct answer: II and III- A. Estrogen
- B. Progesterone
- C. Pituitary gland
- D. Luteinising hormone
Explanation: The structure labelled X is the corpus luteum, which is responsible for producing progesterone.
Correct answer: Progesterone- A. Oocytes
- B. Blood vessels
- C. Corpus luteum
- D. Primary follicle
Explanation: The cortical region of the mammalian ovary contains structures such as oocytes and primary follicles.
Correct answer: Blood vessels- A. Option A
- B. Option B
- C. Option C
- D. Option D
Explanation: B marks the fallopian tube which is the site of fertilisation, a process in which sperm and egg fuses.
Correct answer: Option B- A. 1 : 3
- B. 1 : 4
- C. 3 : 1
- D. 4 : 1
Explanation: The correct answer is 4 : 1. In human males, each primary sex cell (spermatocyte) undergoes meiosis to produce four sperm cells.
Correct answer: 4 : 1- A. Lack protective hard-eggshell
- B. Exhibit incomplete metamorphosis
- C. Have advance mode of sexual reproduction
- D. Have protective hard coverings
Explanation: Unisexuality in animals refers to the presence of individuals that possess reproductive organs of only one sex.
Correct answer: Have advance mode of sexual reproduction- A. A
- B. B
- C. C
- D. D
Explanation: The correct answer is Option D. Spermatogenesis occurs in the seminiferous tubules of the testis.
Correct answer: D- A. P
- B. Q
- C. R
- D. S
Explanation: S is uterus the site for implantation of embryo. So option D is correct.
Correct answer: S- A. Seminal vesicles, Bulbourethral gland, Prostrate gland
- B. Seminal vesicles, Bulbourethral gland, bladder
- C. Seminal vesicles, urethra, Bladder
- D. Testes, Bulbourethral gland, bladder
Explanation: Accessory glands of the male reproductive system individually contribute to the composition of seminal plasma.
Correct answer: Seminal vesicles, Bulbourethral gland, Prostrate gland- A. Prostate, seminal vesicles
- B. Prostate, corpus luteum
- C. Prostate, placenta
- D. Corpus luteum, seminal vesicles
Explanation: The male reproductive system in humans includes several glands that produce and contribute fluids to semen.
Correct answer: Prostate, seminal vesicles- A. Epididymis
- B. Vas deferens
- C. Urinary bladder
- D. Urethra
Explanation: After sperm are produced in the seminiferous tubules of the testes, they move into the epididymis for maturation and storage.
Correct answer: Epididymis- A. Animal and plant cells
- B. Red and white blood cells
- C. Xylem and phloem cells
- D. Male and female gamete cells
Explanation: The group of cells they were referring to is "many, minute, and motile," which describes sperm cells.
Correct answer: Male and female gamete cells- A. 1 2 3 4
- B. 2 4 3 1
- C. 4 3 2 1
- D. 4 2 1 3
Explanation: The correct sequence is 4, 2, 1, 3.1. Inhibition of progesterone secretion occurs first, triggering the onset of labor by removing the…
Correct answer: 4 2 1 3- A. Human chorionic gonadotrophin
- B. Luteinizing hormone
- C. Oxytocin
- D. Progesterone
Explanation: If the implantation is l the embryo begins to secrete human chorionic gonadotropin (hCG).
Correct answer: Progesterone- A. lnhibin
- B. Testosterone
- C. Luteinizing hormone
- D. Nutrients
Explanation: Leydig cells, located in the testes, are responsible for secreting testosterone, the primary male sex hormone.
Correct answer: Testosterone- A. A
- B. B
- C. C
- D. D
Explanation: Fertilization occurs in the oviduct, also known as the fallopian tube (Option B).
Correct answer: B- A. Gametophyte
- B. Spermatogonium
- C. Sperm
- D. Spermatocyte
- E. Spermatid
Explanation: In the process of spermatogenesis, spermatogonium is the diploid cell that divides mitotically to produce two daughter cells - one remains…
Correct answer: Spermatogonium- A. 200
- B. 100
- C. 50
- D. 150
Explanation: The secondary spermatocyte continues into meiosis II and each spermatocyte forms two sperm. So, 2x50=100.
Correct answer: 100- A. Progesterone
- B. Estrogen
- C. Testosterone
- D. Oxytocin
Explanation: Between the seminiferous tubules in the testes are interstitial cells, also known as Leydig cells.
Correct answer: Testosterone- A. Spermatogenesis results in only 1 sperm; oogenesis results in 4 eggs
- B. Spermatogenesis results in 2 sperm; oogenesis results in only 1 egg
- C. Spermatogenesis results in 8 sperm; oogenesis results in only 4 eggs
- D. Spermatogenesis results in 4 sperm; oogenesis results in only 1 functional egg
Explanation: Spermatogenesis is the process of producing sperm cells, which results in the formation of four functional sperm cells from one primary…
Correct answer: Spermatogenesis results in 4 sperm; oogenesis results in only 1 functional egg