Human Reproduction MCQ Class 12

Human Reproduction MCQ Class 12. These 100 Multiple Choice Questions (MCQ) on “Human Reproduction” will help you score full marks in your Class 12 Biology exam.

Introduction

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Correct Answer: D. All of the above. Reproduction serves all these purposes. (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: D. Regenerative reproduction. While regeneration is a biological process, it’s not a primary type of reproduction. (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: B. They give birth to live young. Viviparity means the development of the embryo inside the mother’s body, leading to live birth. (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: C. It increases genetic variation, improving adaptability. Sexual reproduction shuffles genes, creating diverse offspring. (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: A. Budding in yeast. Budding is a form of asexual reproduction where a new organism grows from an outgrowth or bud. (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

Male Reproductive System

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Correct Answer: C. Pelvic cavity. (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: C. Testes, accessory ducts, glands, and external genitalia. (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: B. Produce sperms and hormones. (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: C. To maintain a lower temperature for sperm production. (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: C. 2-2.5°C lower than the normal body temperature. (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: A. Testicular lobules.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: B. Seminiferous tubules. (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: C. The process of sperm production. (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: B. Sertoli cells. (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: A. Leydig cells. (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

Human Reproduction MCQ Class 12

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Correct Answer: C. A type of male hormone. (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: D. Bulbourethral gland. This is an accessory gland, not a duct. (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: B. Store and transport sperms. (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: C. Vas deferens.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: C. Transport both urine and semen. (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: C. Facilitate insemination. (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: D. Vas deferens. This is an accessory duct. (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: B. Secrete seminal plasma. (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: B. Fructose, calcium, and enzymes.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: A. Lubricate the penis.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: A. Provide energy for sperm motility.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: A. Seminal vesicles.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: B.  Secrete a milky fluid that enhances sperm motility.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: C.  Alkaline.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: A.  To protect sperm from the acidic environment of the vagina.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: D.  Both B and C.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: B.  To regulate the temperature of the testes.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: B.  It contracts, bringing the testes closer to the body.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: B.  To regulate the temperature of the testes.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: B.  To provide structural support to the testes.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: B.  To transport sperm from the seminiferous tubules to the efferent ductules.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

Female Reproductive System

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Correct Answer: C.  Pelvic cavity.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: C.  Ovaries, oviducts, uterus, cervix, vagina, and external genitalia.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: A.  Produce eggs and hormones.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: A.  Estrogen and progesterone.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: D.  All of the above.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer:   B.  To prepare the uterus for pregnancy and maintain it during pregnancy.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: B.  Fallopian tubes.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: B.  To transport eggs from the ovaries to the uterus.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: B.  Oviduct (Fallopian tube).  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: C.  To support the developing fetus during pregnancy.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: A.  Perimetrium, myometrium, and endometrium.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: C.  Endometrium.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: B.  To connect the uterus to the vagina.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: B.  To receive sperm during intercourse and serve as the birth canal.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: D.  Cervix.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: B.  To cover the vaginal opening.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: B.  To provide sexual pleasure.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: B.  To produce milk for the newborn.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: A.  The process of milk production.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

Gametogenesis

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Correct Answer: C. The process of gamete (sperm and ovum) formation.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: A. Spermatogenesis.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: B. Testes.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: B. Oogenesis.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: A. Ovaries.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: D. All of the above.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: B. Ovum (egg).  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

Menstrual Cycle

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Correct Answer: A. The beginning of menstruation.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: B. The end of menstruation.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: A. Menstrual, follicular, ovulatory, and luteal.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: C. Follicle-stimulating hormone (FSH).  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: D. Luteinizing hormone (LH).  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: A. The release of an egg from the ovary.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: B. The structure formed from the ruptured follicle after ovulation.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: D. Both B and C.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

Fertilization and Implantation

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Correct Answer: C. The deposition of sperm into the female reproductive tract.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: B. Oviduct (Fallopian tube).  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: C. Zygote.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: B. By the father’s chromosomes.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: C. The rapid cell division of the zygote.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: B. A hollow ball of cells formed from the zygote.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: B. The attachment of the blastocyst to the uterine wall.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

Pregnancy and Embryonic Development

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Correct Answer: C. The organ that connects the developing fetus to the uterine wall.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: D. All of the above.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: C. The organ that connects the developing fetus to the placenta.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: D. All of the above.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: B. Progesterone.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: B. 8 weeks.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: B. 3 weeks.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: B. 8 weeks.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: B. Fetal development.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: C. 16 weeks.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: A. 24 weeks.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

Parturition and Lactation

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Correct Answer: A. 9 months (40 weeks).  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: C. The process of childbirth.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: B. Hypothalamus.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: C. Oxytocin.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: A. To stimulate uterine contractions.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: B. It is expelled from the uterus.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: B. The process of milk production.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: C. Prolactin.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: A. The first milk produced after childbirth.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: D. All of the above.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: D. All of the above.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

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Correct Answer: D. All of the above.  (Human Reproduction MCQ Class 12 by Top100MCQ.com)

   

Most Asked Important Questions on Human Reproduction

What is the significance of the scrotum in the male reproductive system

The scrotum maintains the testes at a temperature lower than the body temperature, which is essential for sperm production.

What is the role of the corpus luteum in the female reproductive cycle?

The corpus luteum secretes progesterone, which is crucial for maintaining the uterine lining for implantation and pregnancy.

How is the sex of a baby determined in humans?

The sex of a baby is determined by the father’s chromosomes (X or Y) that fertilize the mother’s egg (which always carries an X chromosome).

What are the major functions of the placenta during pregnancy?

The placenta provides nutrients and oxygen to the fetus, removes waste products, and produces hormones essential for maintaining the pregnancy.

What is the importance of colostrum in lactation?

Colostrum, the first milk produced after childbirth, is rich in antibodies that provide crucial passive immunity to the newborn, protecting them from infections.

Read Also: Class 12 Geography

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