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 36 of 61
- A. Graafian luteum
- B. Corpus luteum
- C. Ruptured ovum
- D. Follicle
- E. Progestrone
Explanation: After the release of an egg during ovulation, the follicle from which the egg was released undergoes a transformation and forms a…
Correct answer: Corpus luteum- A. 50-100 lobules
- B. 150-200 lobules
- C. 200-300 lobules
- D. 250-300 lobules
Explanation: Each human testis is divided into approximately 250-300 lobules. These lobules are small compartments or sections within the testis that…
Correct answer: 250-300 lobules- A. Pituitary Gland
- B. Hypothalamus
- C. Sertoli cells
- D. Leydig cells or interstitial cells
Explanation: Leydig cells, also known as interstitial cells, are responsible for the production and release of testosterone in males.
Correct answer: Leydig cells or interstitial cells- A. Menstrual stage
- B. Proliferative stage
- C. Ovulation stage
- D. Secretory stage
Explanation: The ovulation stage is when the mature egg is released from the ovary. Leutinizing hormone (LH) levels surge dramatically just before…
Correct answer: Ovulation stage- A. Blood transfusion
- B. Insect bite
- C. contaminated water
- D. Sexual contact
Explanation: The major source of transmission for syphilis is through sexual contact, specifically through direct contact with syphilis sores or mucous…
Correct answer: Sexual contact- A. Urethra
- B. Epididymis
- C. Oviduct
- D. Seminiferous tubules
Explanation: Testes are composed largely of seminiferous tubules-coiled tubes, the walls of which contain cells that produce sperm-and are surrounded…
Correct answer: Seminiferous tubules- A. Sperm cell
- B. Mesophyll cell
- C. Skin cell
- D. Muscular cell
Explanation: The word haploid (meaning 'half') describes a cell that contains a single set of chromosomes.
Correct answer: Sperm cell- A. Vasa efferentia
- B. Vas deferens
- C. Urethra
- D. Epididymis
Explanation: Sperm cells pass through a series of ducts to reach the outside of the body.
Correct answer: Urethra- A. 6-7 days
- B. 3-6 days
- C. 10-12 days
- D. 12-15 days
Explanation: After fertilization, the zygote does takes 6-7 days to reach the uterus. This option is the correct option.
Correct answer: 6-7 days- A. 37 °C
- B. 32°C
- C. 30°C
- D. 35°C
Explanation: It is a fact that 35°C is the best temperature for spermatogenesis. Option D is the correct option.
Correct answer: 35°C- A. Follicle development
- B. Ovulation
- C. Embryo implantation
- D. Menstruation
Explanation: As its name suggests, follicle-stimulating hormone stimulates and helps in the development of FOLLICLES. Hence, option A is correct.
Correct answer: Follicle development- A. Follicle development
- B. Ovulation
- C. Embryo implantation
- D. Menstruation
Explanation: As its name suggests, follicle-stimulating hormone stimulates and helps in the development of FOLLICLES. Hence, option A is correct.
Correct answer: Follicle development- A. Testosterone production
- B. FSH production
- C. Sperm production
- D. Testosterone inhibition
Explanation: Leydig cells function to stimulate the production of the hormone testosterone.
Correct answer: Testosterone production- A. Neurons
- B. Hormones
- C. Glands
- D. Hypothalamus
Explanation: Chemical messengers produced by glands in the endocrine system that travel through the bloodstream to target organs and tissues, where…
Correct answer: Hormones- A. Menstrual stage
- B. Follicular stage
- C. Proliferative stage
- D. Secretory stage
Explanation: Secretory stage begins after ovulation and lasts until the end of the menstrual cycle.
Correct answer: Secretory stage- A. 20-150 million
- B. 2-10 million
- C. 20-150 thousand
- D. 2-10 thousand
Explanation: Average sperm count per ml of semen is 20 -150 million.
Correct answer: 20-150 million- A. Testosterone
- B. Parathormone
- C. Oxytocin
- D. Progesterone
Explanation: Testosterones are secreted by gonads or leydig cells.Parathormone is secreted by four parathyroid glands.Oxytocin is secreted by the…
Correct answer: Progesterone- A. Acrosome
- B. Head
- C. Mid piece
- D. Tail
Explanation: Option C is Correct as Mid-piece of sperm has the mitochondrion. (NOTE: The child gets mitochondrion from mothers).
Correct answer: Mid piece- A. Follicle-Stimulating Hormone (FSH)
- B. Estrogen
- C. Progesterone
- D. Luteinizing Hormone (LH)
Explanation: Progesterone is produced by the corpus leuteum in the ovary after ovulation.
Correct answer: Progesterone- A. Testosterone
- B. GnRH
- C. FSH
- D. Inhibin
- E. Luteinizing hormone
Explanation: Inhibin is a hormone produced by the gonads (ovaries in females and testes in males) that inhibits the secretion of follicle-stimulating…
Correct answer: Inhibin