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 26 of 61
- A. Produce sperms
- B. Store food for the developing embryo
- C. Transfer sperms from the stigma to the ovary
- D. Produce female gametophytes
Explanation: The pollen tube is a crucial structure in the reproductive process of seed plants.
Correct answer: Transfer sperms from the stigma to the ovary- A. Spores
- B. Sperms
- C. Seeds
- D. Ova
Explanation: The testes (or testicles) are critical to the male reproductive system, primarily producing sperm and the hormone testosterone.
Correct answer: Sperms- A. Estrogen
- B. Progesterone
- C. FSH
- D. LH
Explanation: The correct answer is LH, as it is the hormone whose surge triggers ovulation and is detected by ovulation prediction kits.
Correct answer: LH- A. Causes epicotyl (plumule) hook to unbend
- B. Induces increase in leaf area
- C. Elongation of internodes is promoted
- D. Stimulate flowering in long day plants
- E. Phytochrome 660 changes to phytochrome 730
Explanation: Red light does not promote internode elongation in plants. Promoting elongation of internodes: This is known as the stem elongation…
Correct answer: Elongation of internodes is promoted- A. Single cycle
- B. Two cycles
- C. Three cycles
- D. Four cycles
Explanation: The menstrual cycle is governed by hormonal changes. These changes can be altered by using hormonal birth control to prevent pregnancy.
Correct answer: Two cycles- A. Oogonium to primary oocyte
- B. Primary oocyte to secondary oocyte
- C. Secondary oocyte to egg
- D. None of the given options
Explanation: In oogenesis, diploid oogonium goes through mitosis until one develops into a primary oocyte, which will begin the first meiotic division…
Correct answer: Oogonium to primary oocyte- A. Leyding cells
- B. Hensen's node cells
- C. Sertoli cells
- D. Interstitial cells
Explanation: Inhibin hormone is produced by Sertoli cells in human males. Inhibin inhibits the secretion of FSH from the pituitary gland, helping to…
Correct answer: Sertoli cells- A. Spermatocytes
- B. Spermatids
- C. Sertoli cells
- D. Polar bodies
Explanation: Through meiosis sperms are produced. A primary spermatocyte is transformed into two secondary spermatocytes during meiosis I - these cells…
Correct answer: Spermatids- A. Death
- B. Birth
- C. Ovulation
- D. Fertilization
Explanation: The secondary oocyte commences meiosis 2 which arrests at metaphase and will not continue without fertilization.
Correct answer: Fertilization- A. Follicle stimulating
- B. Estrogen
- C. Luteinizing hormone
- D. Progesterone
Explanation: Luteinizing hormone (LH), aids in egg maturation and provides the hormonal trigger to cause ovulation and the release of eggs from the…
Correct answer: Luteinizing hormone- A. Oogonia
- B. Primary oocyte
- C. Secondary oocyte
- D. Ova
Explanation: Option A: Oogonia are the immature egg cells that are present in the ovaries before birth.
Correct answer: Primary oocyte- A. Ovulation
- B. Primary oocyte
- C. Secondary oocyte
- D. Ova
Explanation: Option A: Ovulation is the process of the release of an egg from the ovary. The fallopian tube is not involved in ovulation.
Correct answer: Secondary oocyte- A. Red
- B. Yellow
- C. Grey
- D. Black
Explanation: Option A: The corpus luteum is not red. If it appears red, it may be due to bleeding or inflammation.
Correct answer: Yellow- A. A. Spermatogonia
- B. B. Oogonia
- C. C. Polar body
- D. D. Ovum
Explanation: The correct answer is Option C: Polar body. During oogenesis, a mature ovum is formed alongside smaller cells known as polar bodies.
Correct answer: C. Polar body- A. AIDS
- B. Hepatitis
- C. Gonorrhoea
- D. All of these
Explanation: Gonorrhea is a bacterial infection. This is a sexually transmitted infection caused by the bacterium Neisseria gonorrhoeae.
Correct answer: Gonorrhoea- A. 25
- B. 26
- C. 27
- D. 28
Explanation: The length of the menstrual cycle varies from woman to woman, but the average is to have periods every 28 days.
Correct answer: 28- A. 2nd month
- B. 3rd month
- C. 4th month
- D. 5th month
Explanation: An embryo is termed a fetus beginning in the 11th week of pregnancy, which is the 9th week of development after fertilization of the egg.
Correct answer: 3rd month- A. Oestrous cycle
- B. Menstrual cycle
- C. Both A and B
- D. None of these
Explanation: Menstrual cycle is the reproductive period or cycle of females , it is a complex cycle controlled by female hormones that cause regular…
Correct answer: Menstrual cycle- A. Estrogen
- B. Progesterone
- C. FSH
- D. LH
Explanation: The ovary, under the stimulus of FSH, also produces estrogen hormone.-This, on one hand, stimulates the endometrium (internal lining of…
Correct answer: Estrogen- A. Syphilis
- B. Genital herpes
- C. Gonorrhoa
- D. HPV
Explanation: Genital herpes transmits during birth to infants damaging the eyes and CNS of infants.
Correct answer: Genital herpes