Class 12 Human Reproduction MCQs with Answer

Class 12 Chemistry Human Reproduction MCQs with Answer

At Horizon Competition School, our Class 12 Chemistry MCQs on “Human Reproduction” are meticulously crafted to provide students with comprehensive preparation on this vital topic. These multiple-choice questions cover various aspects of human reproductive anatomy, physiology, and reproductive health. By engaging with these MCQs, students can deepen their understanding of reproductive processes, including gametogenesis, fertilization, embryonic development, and reproductive disorders.

Our MCQs challenge students to apply their knowledge to solve problems and analyze reproductive scenarios, fostering critical thinking and problem-solving skills essential for success in Class 12 Chemistry exams. Each MCQ is accompanied by a detailed answer explanation, enabling students to grasp the underlying concepts thoroughly.

By practicing Class 12 Chemistry MCQs on “Human Reproduction” at Horizon Competition School, students not only prepare effectively for their exams but also gain a deeper appreciation for the complexities of human reproductive biology and its significance in maintaining reproductive health and population dynamics.

Q1. Spermiation is the process of the release of sperms from:

1. Seminiferous tubules.
2. Vas deferens.
3. Epididymis.
4. Prostate gland.

Q2. Spot the odd one out from the following structures with reference to the male reproductive system:

1. Ret testis.
2. Epididymis.
3. Vasa efferentia.
4. Isthmus.

Q3. Mature Graafian follicle is generally present in the ovary of a healthy human female around stet:

1. 5 – 8 day of menstrual cycle.
2. 11 – 17 day of menstrual cycle.
3. 18 – 23 day of menstrual cycle.
4. 24 – 28 day of menstrual cycle.

Q4. Urethral meatus refers to the:

1. Urinogenital duct.
2. Opening of vas deferens into urethra.
3. External opening of the urinogenital duct.
4. Muscles surrounding the urinogenial duct.

Q5. There is no cell division involved in:

1. Spermatogenesis.
2. Oogenesis.
3. Embryogenesis.
4. Spermiogenesis.

Q6. Which of the following statements regarding the sperm is incorrect?

1. The head of sperm has nucleus capped by acrosome.
2. Acrosome is derived from nucleus.
3. The neck has proximal and distal centrioles.
4. Mitochondria provides energy for the sperm.

Q7. Which among the following has 23 chromosomes?

1. Spermatogonia.
2. Zygote.
3. Secondary oöcyte.
4. Oögonia.

Q8. Proliferative phase of menstrual cycle, is also called:

1. Follicular phase.
2. Luteal phase.
3. Secretory phase.
4. Ovulatory phase

Q9. The immature male germ cell undergo division to produce sperms by the process of spermatogenesis. Choose the
correct one with reference to above:

1. Spermatogonia have 46 chromosomes and always undergo meiotic cell division.
2. Primary spermatocytes divide by mitotic cell division.
3. Secondary spermatocytes have 23 chromosomes and undergo second meiotic division.
4. Spermatozoa are transformed into spermatids.

Q11. The cell which undergoes meiosis I during spermatogenesis, is the:

1. Spermatogonium.
2. Spermatid.
3. Primary spermatocyte.
4. Secondary spermatocyte.

Q12. Select the correct sequence of stages of spermatogenesis in a human male.

1. Spermatogonium Spermatids → Spermatocytes → Spermatozoa.
2. Spermatogonium → Spermatocytes → Spermatids → Permatozoa.
3. Spermatids → Spermatogonium → Spermatocytes → Spermatozoa.
4. Spermatocytes → Spermatogonium → Spermatids → Spermatozoa.

Q13. The outermost layer of a blastocyst is called:

1. Ectoderm.
2. Mesoderm.
3. Endoderm.
4. Trophoblast.

Q14. Which of the following hormones prepares the uterus for implantation?

1. Progesterone.
2. FSH.
3. Estrogen.
4. LH

Q15. The eggs with calcareous shell are called:

1. Alecithal.
2. Polylecithal.
3. Cleidoic.
4. Mesolecithal.