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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- A. Aphids
- B. Mosquito
- C. Butterfly
- D. Honeybee
Explanation: In honeybees, males (also known as drones) are haploid, meaning they have only one set of chromosomes.
Correct answer: Honeybee- A. Seminal vesicles
- B. Bulbourethral glands
- C. Prostate gland
- D. All of these options are correct
Explanation: The glands that contribute to the production of semen in males are the seminal vesicles, the prostate gland, and the bulbourethral glands…
Correct answer: All of these options are correct- A. Haploid sporophyte and diploid gametophyte generations
- B. Diploid sporophyte and diploid gametophyte generations
- C. Haploid sporophyte and haploid gametophyte generations
- D. Haploid gametophyte and diploid zygotic phase only
Explanation: In sexual reproduction, plants exhibit different life cycles, and one common type is the diplohaplontic life cycle, also known as the…
Correct answer: Haploid sporophyte and haploid gametophyte generations- A. Exchange oxygen
- B. Exchange carbon dioxide
- C. Exchange nutrients
- D. All of these
Explanation: The placenta plays a crucial role in the exchange of oxygen, carbon dioxide, and nutrients between the maternal and fetal circulations…
Correct answer: All of these- A. Scrotum
- B. Seminiferous tubules
- C. Prepuce
- D. Epididymis
Explanation: The epididymis is a highly convoluted tube located on the surface of each testis.
Correct answer: Epididymis- A. Fluid and Sperms
- B. Blood and Water
- C. Blood and Sperms
- D. Blood and Fluid
Explanation: Semen refers to the fluid that is ejaculated from the penis during male reproduction.
Correct answer: Fluid and Sperms- A. Maintenance of the corpus luteum
- B. Formation of the placenta
- C. Blastocyst implantation
- D. Formation of the corpus albicans
Explanation: Correct Answer: Formation of the corpus albicans.The corpus albicans is a scar-like structure that forms when the corpus luteum…
Correct answer: Formation of the corpus albicans- A. Auxin
- B. Gibberellins
- C. Cytokinins
- D. All of the above
Explanation: Auxins are plant hormones that are involved in cell elongation, apical dominance, and the control of phototropism and gravitropism.
Correct answer: All of the above- A. Fallopian tube
- B. Uterine tube
- C. Both A and B options are correct
- D. Uterus
Explanation: The oviduct is generally called the fallopian tube or uterine tube. The fallopian tubes are a pair of structures that connect the ovaries…
Correct answer: Both A and B options are correct- A. Spermatozoa
- B. Primary oocyte
- C. Secondary spermatocyte
- D. Spermatogonia
Explanation: The correct answer is Spermatozoa. Spermatids undergo a transformation process known as spermiogenesis to become spermatozoa, which are…
Correct answer: Spermatozoa- A. Malnourishment
- B. Emotional stress
- C. Both A and B
- D. None of these
Explanation: Both malnourishment and emotional stress can adversely affect the female reproductive cycle.
Correct answer: Both A and B- A. Megalis
- B. Zona pellucida
- C. Acrosome
- D. Both A and B
Explanation: The organelle that plays a crucial role in helping the sperm penetrate the ovum (egg) during fertilization is the acrosome.
Correct answer: Acrosome- A. Uterus
- B. Ovary
- C. Cervix
- D. Oviduct
Explanation: The uterine tube, also known as the fallopian tube, opens into the uterus.
Correct answer: Uterus- A. Sperm duct
- B. Sacrotum
- C. Urethera
- D. Gamete
Explanation: The sperm duct, also known as the vas deferens, is the tube that transports sperm from the testes to the penis.
Correct answer: Sperm duct- A. Ovulation
- B. Menstruation
- C. Fertilization
- D. Menopause
Explanation: Menopause is the time that marks the end of the menstrual cycles of a woman.
Correct answer: Menopause- A. Ureter
- B. Testes
- C. Urethra
- D. Abdominal cavity
Explanation: The sperm duct, also known as the vas deferens, carries sperm from the testes to the urethra.
Correct answer: Urethra- A. Lipids
- B. Hormones
- C. Digestive enzymes
- D. All of these
Explanation: The acrosome is a structure located at the tip of the sperm cell's head, and it contains hydrolytic enzymes.
Correct answer: Digestive enzymes- A. Voice deepens
- B. Pubic hair grow
- C. Hips broaden
- D. Menstrual cycle starts
Explanation: In females, puberty is associated with the development of secondary sexual characteristics, including breast development, widening of the…
Correct answer: Voice deepens- A. Foetal tissues
- B. Bone tissues
- C. Lymph tissues
- D. Cardiac muscle tissue
Explanation: The placenta is a temporary organ that forms during pregnancy and serves as the interface between the maternal and fetal tissues.
Correct answer: Foetal tissues- A. Spermatogonia
- B. Oogonia
- C. Zygospores
- D. Eggs
Explanation: Germ cells in the ovary, specifically oogonia, undergo a process called oogenesis to produce eggs or ova.
Correct answer: Oogonia