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 4 of 61
- A. Days 7-10
- B. Days 11-14
- C. Days 15-18
- D. Days 19-22
Explanation: Ovulation falls at about day 14, and the LH surge precedes it by roughly a day, so it lies in the window from day 11 to 14.
Correct answer: Days 11-14- A. Syphilis
- B. Chlamydia
- C. Gonorrhea
- D. Genital herpes
Explanation: Treponema pallidum is the spiral bacterium, or spirochaete, that causes syphilis, a disease progressing through primary, secondary, latent…
Correct answer: Syphilis- A. Seminiferous tubules
- B. Vas deferens
- C. Scrotum
- D. Epididymis
Explanation: The germinal epithelium lining the seminiferous tubules divides by mitosis and then meiosis to produce spermatids, which mature into…
Correct answer: Seminiferous tubules- A. Cervical epithelium
- B. Myometrium
- C. Endometrium
- D. Perimetrium
Explanation: The endometrium is the inner glandular lining, thickened and richly supplied with blood by progesterone, and it is where the blastocyst…
Correct answer: Endometrium- A. Anton van Leeuwenhoek
- B. Von Baer
- C. Robert Hook
- D. None of These
Explanation: Anton van Leeuwenhoek first observed human sperm cells in semen using a microscope in the seventeenth century.
Correct answer: Anton van Leeuwenhoek- A. oocyte
- B. oogenesis
- C. Oviduct
- D. None of these
Explanation: Oogenesis is the complete process by which female germ cells develop into ova, including growth and maturation of oocytes.
Correct answer: oogenesis- A. Pollination
- B. Respiration
- C. Fertilization
- D. Asexual reproduction
Explanation: Fertilization is the fusion of a sperm nucleus with the egg nucleus, producing a diploid zygote.
Correct answer: Fertilization- A. Obstetrician
- B. Gynecologist
- C. Pediatrician
- D. Podiatrist
Explanation: An obstetrician specialises in pregnancy, labour and delivery, including the medical care of the mother and baby during childbirth.
Correct answer: Obstetrician- A. Dioecious plants
- B. Pawpaw
- C. Flowers
- D. both A and B Educational Resources
Explanation: Self-pollination cannot occur in dioecious plants because male and female flowers are present on separate plants; pawpaw is a commonly…
Correct answer: both A and B Educational Resources- A. cervix
- B. vagina
- C. uterus
- D. amniotic fluid
Explanation: Amniotic fluid surrounds the foetus and absorbs shocks, thereby protecting it from mechanical injury while also allowing movement.
Correct answer: amniotic fluid- A. Neurula
- B. Morula
- C. Gastrula
- D. Balastula
Explanation: The blastula is the first embryonic stage in which a fluid-filled cavity called the blastocoel appears.
Correct answer: Balastula- A. Sertoli cells
- B. Germinal cell
- C. Interstitial cells
- D. Spermatocyte
Explanation: Interstitial cells, also called Leydig cells, lie between the seminiferous tubules and produce testosterone in response to luteinising…
Correct answer: Interstitial cells- A. Ureter
- B. Ovary
- C. Lung
- D. Testis
Explanation: Female birds normally retain only the left ovary and left oviduct as functional, while the right side is greatly reduced, an adaptation…
Correct answer: Ovary- A. All plants
- B. All seed plants
- C. Gymnosperms
- D. Angiosperms
Explanation: Double fertilization is characteristic of angiosperms: one sperm fertilizes the egg to form the zygote, while the other fuses with the…
Correct answer: Angiosperms- A. Endoderm
- B. Ectoderm
- C. Mesoderm
- D. Extraembryonic layers
Explanation: Embryonic induction occurs when one group of embryonic cells influences the development of neighbouring cells; the mesoderm acts as an…
Correct answer: Mesoderm- A. fertilization
- B. ovulation
- C. implantation
- D. none of these
Explanation: Ovulation is the release of a mature secondary oocyte from an ovarian follicle, usually around the middle of the menstrual cycle.
Correct answer: ovulation- A. Graffian follicle
- B. Ovary
- C. Corpus luteum
- D. Placenta
Explanation: After ovulation, the ruptured Graafian follicle changes into the corpus luteum, a yellow endocrine structure that secretes progesterone.
Correct answer: Corpus luteum- A. Campylobacter
- B. Nitrobacter
- C. Azobacter
- D. Salmonella
Explanation: Defrosting meat can release contaminated fluid, and Salmonella may be present and spread to other foods or surfaces.
Correct answer: Salmonella- A. 0%
- B. 25%
- C. 50%
- D. 100%
Explanation: In the given scenario, the mother is Rh-negative, and the child is Rh-positive.
Correct answer: 100%- A. Gestation
- B. Ovulation
- C. Conception
- D. Implantation
Explanation: The correct answer is gestation. Gestation is the period from fertilization until birth in mammals, where the embryo develops into a…
Correct answer: Gestation