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 28 of 61
- A. Sperm duct
- B. Scrotum
- C. Urethra
- D. Gamete
Explanation: The structure that transports sperm from the testes to the penis is the vas deferens.
Correct answer: Sperm duct- A. Pluripotent stem cells
- B. Blood stem cells
- C. Cord blood stem cells
- D. Both Options A and B are correct
Explanation: The correct answer is cord blood stem cells. The umbilical cord contains blood stem cells, specifically referred to as cord blood stem…
Correct answer: Cord blood stem cells- A. Endometrium
- B. Perimetrium
- C. Corpus luteum
- D. None of these options are correct
Explanation: After the release of the egg (ovulation) from the ovarian follicle, the remaining structure transforms into a specialized endocrine organ…
Correct answer: Corpus luteum- A. After about 7 days of fertilization
- B. After about two months of fertilization
- C. After about three weeks of fertilization
- D. After about 30 days of fertilization
Explanation: Once the embryo reaches the blastocyst stage, approximately five to six days after fertilization, it hatches out of its zona pellucida and…
Correct answer: After about 7 days of fertilization- A. Gestation
- B. Fertilization
- C. Cleavage
- D. Implantation
Explanation: The order of events in pregnancy is as follows: Fertilization → Cleavage → Implantation Fertilization means the fusion of an egg and a…
Correct answer: Implantation- A. 7th
- B. 4th
- C. 5th
- D. 3rd
Explanation: At three months of gestation, the developing human organism is typically referred to as a fetus rather than an embryo.
Correct answer: 3rd547. After how many months of pregnancy does a healthy mother typically give birth to a healthy child?
- A. 7 months
- B. 5 months
- C. 12 months
- D. 10 months
Explanation: A full-term pregnancy typically lasts around 40 weeks, or about 9 months.
Correct answer: 10 months- A. Graafian follicle
- B. None of these
- C. Adrenal cortex
- D. Adrenal medulla
Explanation: In females, testosterone is primarily produced by the ovaries and the adrenal cortex.
Correct answer: Adrenal cortex- A. Embryo
- B. Fetus
- C. Zygote
- D. Infant
Explanation: At three months of gestation, the developing human organism is typically referred to as a fetus rather than an embryo.
Correct answer: Fetus- A. Cytokinin
- B. Giberellins
- C. Auxins
- D. All of these
Explanation: All of the listed hormones (cytokinin, auxins, and gibberellins) can promote parthenocarpy.
Correct answer: All of these- A. 4
- B. 2
- C. 1
- D. 3
Explanation: In spermatogenesis, each meiotic division gives rise to four functional gametes.
Correct answer: 4- A. Ovary
- B. Uterus
- C. Cervix
- D. Fallopian tube
Explanation: The secondary oocyte completes its maturation in the fallopian tube. After ovulation, the secondary oocyte is released from the ovary and…
Correct answer: Fallopian tube- A. Uterine wall is prepared for implantation of embryo
- B. Menstrual flow
- C. Levels of estrogen fall
- D. Ovulation
Explanation: The time duration of days 16-28 is known as the luteal phase. During this time, the uterine wall is prepared for the implantation of the…
Correct answer: Uterine wall is prepared for implantation of embryo- A. May be haploid or diploid
- B. Triploid
- C. Haploid
- D. Diploid
Explanation: The ovum (egg cell) formed after fertilization is diploid. Fertilization is the process by which a sperm cell, which is haploid, combines…
Correct answer: Diploid- A. Ovulation
- B. Implantation
- C. Fertilization
- D. None of these
Explanation: The oviduct, also known as the fallopian tube, is specialized for the transport of eggs (or ova) from the ovary to the uterus.
Correct answer: Fertilization- A. 16-28
- B. 1-7
- C. 11-14
- D. None
Explanation: The most fertile period during the menstrual cycle is typically around the time of ovulation.
Correct answer: 11-14- A. Luteinizing hormone
- B. Follicle stimulating hormone
- C. Estrogen
- D. Oxytocin
Explanation: Estrogen, a hormone produced mainly by the ovaries, does influence the menstrual cycle and the endometrial lining in several ways.
Correct answer: Estrogen- A. 5-13 days
- B. 1-4 days
- C. 14-20 days
- D. 20-28 days
Explanation: Following menstruation, the proliferative phase begins. It usually lasts from around day 6 to day 14 of a 28-day cycle, but the exact…
Correct answer: 5-13 days- A. From day 16-28
- B. From day 1-5
- C. At day 14
- D. From day 6-12
Explanation: Follicular Phase (Days 6-14): The early follicular phase overlaps with the menstrual phase.
Correct answer: From day 6-12- A. Seminal vesicles
- B. Scrotum
- C. Prostate gland
- D. epididymis
Explanation: Sperm is produced in the testes, specifically in structures called the seminiferous tubules.
Correct answer: epididymis