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Human Reproduction Class 12 MCQs – Understanding human reproduction is a key part of Class 12 Biology, especially for students preparing for board exams and medical NEET entrance exams. Chapter 3 of the NCERT Class 12 Biology book, titled “Human Reproduction”, covers important concepts such as male and female reproductive systems, gametogenesis, menstrual cycle, fertilization, pregnancy, and parturition.
To help students grasp these topics better, this page offers a wide range of Human Reproduction Class 12 MCQ with answers. These multiple choice questions are carefully selected to test your knowledge and improve your confidence. Whether you’re studying from the Human Reproduction Class 12 PDF, revising NCERT Class 12 Biology Chapter 3, or preparing for competitive exams like NEET, practicing these questions will boost your understanding.
We also provide a MCQ on Human Reproduction Class 12 PDF download option so you can practice offline. Plus, you can take a Human Reproduction MCQs Online Test to check your preparation instantly.
If you’re looking for well-structured MCQ on reproductive system with answers PDF, or want to explore detailed questions from Human Reproduction Class 12 MCQ NEET, you’ll find it all here. Each question includes clear explanations and covers important NCERT Solutions points, making it easier for students to revise and learn.
CBSE Class 12 MCQs Question with Answers of Biology Chapter 3 – Human Reproduction
Ques. Where does fertilization normally occur in the female reproductive system?
A. Uterus
B. Cervix
C. Vagina
D. Fallopian tube
Answer: D. Fallopian tube
Explanation: Fertilization of the ovum by the sperm usually occurs in the ampullary-isthmic junction of the fallopian tube.
Ques. Which hormone triggers ovulation?
A. LH
B. FSH
C. Estrogen
D. Progesterone
Answer: A. LH
Explanation: Luteinizing hormone (LH) surge is responsible for the release of the mature ovum from the Graafian follicle.
Ques. What is the function of Sertoli cells?
A. Produce testosterone
B. Support spermatogenesis
C. Store sperm
D. Produce seminal fluid
Answer: B. Support spermatogenesis
Explanation: Sertoli cells provide nourishment and structural support to developing spermatogenic cells.
Ques. The process of formation of sperms is called:
A. Oogenesis
B. Fertilization
C. Spermatogenesis
D. Implantation
Answer: C. Spermatogenesis
Explanation: Spermatogenesis is the process by which sperms are formed in the seminiferous tubules.
Ques. Which of the following is the outermost layer of the uterus?
A. Endometrium
B. Myometrium
C. Perimetrium
D. Epimetrium
Answer: C. Perimetrium
Explanation: The uterus has three layers: inner endometrium, middle myometrium, and outer perimetrium.
Ques. Which part of the sperm contains enzymes to penetrate the ovum?
A. Head
B. Middle piece
C. Tail
D. Acrosome
Answer: D. Acrosome
Explanation: Acrosome contains hydrolytic enzymes that help the sperm penetrate the egg membrane.
Ques. The average duration of the human menstrual cycle is:
A. 21 days
B. 28 days
C. 30 days
D. 15 days
Answer: B. 28 days
Explanation: The normal menstrual cycle spans around 28 days, divided into phases like follicular, ovulatory, and luteal.
Ques. Which hormone is essential to maintain pregnancy?
A. FSH
B. Estrogen
C. Progesterone
D. LH
Answer: C. Progesterone
Explanation: Progesterone maintains the endometrial lining, necessary for the sustenance of pregnancy.
Ques. Capacitation occurs in:
A. Epididymis
B. Vas deferens
C. Vagina
D. Female reproductive tract
Answer: D. Female reproductive tract
Explanation: Capacitation is the functional maturation of sperm in the female reproductive tract.
Ques. The number of chromosomes in a human sperm cell is:
A. 23
B. 46
C. 44
D. 22
Answer: A. 23
Explanation: Human sperm is haploid with 23 chromosomes—half the number of somatic cells.
Ques. Which is not a part of the male accessory ducts?
A. Epididymis
B. Vas deferens
C. Urethra
D. Seminal vesicle
Answer: D. Seminal vesicle
Explanation: Seminal vesicle is a gland, not a duct.
Ques. Which part of the female reproductive system receives the ovum after ovulation?
A. Uterus
B. Cervix
C. Fallopian tube
D. Vagina
Answer: C. Fallopian tube
Explanation: The fimbriae of the fallopian tube catch the ovum from the ovary.
Ques. When does implantation occur after fertilization?
A. 1 day
B. 3 days
C. 6–7 days
D. 10 days
Answer: C. 6–7 days
Explanation: The blastocyst implants in the endometrium about 6–7 days post-fertilization.
Ques. The site of spermatogenesis is:
A. Rete testis
B. Epididymis
C. Seminiferous tubules
D. Leydig cells
Answer: C. Seminiferous tubules
Explanation: Spermatogenesis occurs in the seminiferous tubules of the testes.
Ques. Menarche is:
A. First ovulation
B. First menstrual flow
C. End of menstruation
D. Fertilization
Answer: B. First menstrual flow
Explanation: Menarche marks the onset of puberty and reproductive ability in females.
Ques. What is colostrum rich in?
A. Fat
B. Iron
C. Antibodies
D. Carbohydrates
Answer: C. Antibodies
Explanation: Colostrum is the first milk and contains antibodies (especially IgA) to protect the newborn.
Ques. The human placenta is:
A. Endothelial
B. Haemochorial
C. Syndesmochorial
D. Epitheliochorial
Answer: B. Haemochorial
Explanation: In humans, the chorionic villi are in direct contact with maternal blood.
Ques. Ovum is released from:
A. Primary follicle
B. Graafian follicle
C. Corpus luteum
D. Secondary follicle
Answer: B. Graafian follicle
Explanation: The mature Graafian follicle releases the ovum during ovulation.
Ques. Which layer of the uterus undergoes cyclic changes?
A. Endometrium
B. Myometrium
C. Perimetrium
D. Epimetrium
Answer: A. Endometrium
Explanation: Endometrium thickens and sheds cyclically during the menstrual cycle.
Ques. Which hormone is used in pregnancy tests?
A. Progesterone
B. Estrogen
C. LH
D. hCG
Answer: D. hCG
Explanation: Human chorionic gonadotropin (hCG) is detected in urine during pregnancy tests.
Ques. The embryo implants in which part of the uterus?
A. Myometrium
B. Cervix
C. Endometrium
D. Fundus
Answer: C. Endometrium
Explanation: The endometrium is the inner lining where the embryo implants and develops.
Ques. Which cells secrete testosterone?
A. Sertoli
B. Leydig
C. Spermatogonia
D. Granulosa
Answer: B. Leydig
Explanation: Leydig cells (interstitial cells) in the testes secrete testosterone.
Ques. Which of the following is a male accessory gland?
A. Ovary
B. Seminal vesicle
C. Fallopian tube
D. Clitoris
Answer: B. Seminal vesicle
Explanation: Seminal vesicle adds fluid to semen, rich in fructose.
Ques. Amnion is:
A. Fluid-filled sac around embryo
B. Outer uterine wall
C. Fetal blood vessel
D. Placental tissue
Answer: A. Fluid-filled sac around embryo
Explanation: Amnion surrounds the embryo and protects it with amniotic fluid.
Ques. Which hormone stimulates milk ejection?
A. Oxytocin
B. Prolactin
C. Progesterone
D. FSH
Answer: A. Oxytocin
Explanation: Oxytocin causes contraction of mammary ducts, leading to milk ejection.
Ques. Corpus luteum secretes:
A. FSH
B. Estrogen
C. LH
D. Progesterone
Answer: D. Progesterone
Explanation: After ovulation, corpus luteum forms and secretes progesterone to maintain the endometrium.
Ques. Which stage implants in the uterus?
A. Morula
B. Blastocyst
C. Zygote
D. Embryo
Answer: B. Blastocyst
Explanation: The blastocyst implants into the endometrial lining for further development.
Ques. How many sperms are formed from one primary spermatocyte?
A. 1
B. 2
C. 4
D. 8
Answer: C. 4
Explanation: One primary spermatocyte undergoes meiosis to form 4 spermatids, which develop into 4 sperms.
Ques. Which is the correct path for sperm transport?
A. Testis → Epididymis → Vas deferens → Urethra
B. Testis → Vas deferens → Epididymis → Urethra
C. Vas deferens → Epididymis → Testis → Urethra
D. Epididymis → Testis → Urethra → Vas deferens
Answer: A. Testis → Epididymis → Vas deferens → Urethra
Explanation: This is the normal path followed by sperm in the male reproductive system.
Ques. Which of the following marks the onset of pregnancy?
A. Ovulation
B. Fertilization
C. Implantation
D. Menstruation
Answer: C. Implantation
Explanation: Pregnancy begins when the blastocyst successfully implants into the uterus.
MCQs on Human Reproduction Class 12
Where can I download Human Reproduction Class 12 MCQ with answers in PDF format?
You can download MCQ on Human Reproduction Class 12 PDF from trusted educational websites Infinity Learn platforms that offer CBSE or NEET preparation materials. These PDFs include solved questions with explanations based on NCERT Chapter 3 – Human Reproduction.
Are these Human Reproduction Class 12 MCQs useful for NEET 2025 preparation?
Yes, these Human Reproduction Class 12 MCQ NEET questions are extremely useful. Many NEET biology questions are directly based on NCERT concepts, especially from Class 12 Chapter 3. Practicing these MCQs enhances speed, accuracy, and conceptual clarity.
Can I take an online test for Human Reproduction MCQs?
Absolutely. Several e-learning platforms offer Human Reproduction MCQs online tests. These tests simulate real exam conditions, provide instant feedback, and help in self-assessment.
Do these MCQs cover the complete syllabus of Chapter 3 – Human Reproduction?
Yes, the provided Human Reproduction Class 12 MCQs cover all key topics such as male and female reproductive systems, gametogenesis, menstrual cycle, fertilization, implantation, and pregnancy. They are aligned with the Human Reproduction Class 12 PDF (NCERT).
Are answers and explanations provided with the MCQs?
Yes, all MCQs are accompanied by detailed answers and explanations. This helps students understand the logic behind each correct option, making it easier to remember concepts for board exams and entrance tests.
