नमस्ते! Here are 20 Multiple Choice Questions (MCQs) on Human Reproduction, which are often asked in Class 12 Biology and competitive exams.
🧬 MCQs on Human Reproduction
1. The primary function of the corpus luteum is to produce which hormone?
a. Luteinizing Hormone (LH)
b. Follicle-Stimulating Hormone (FSH)
c. Progesterone
d. Estrogen
2. Where does fertilization typically occur in humans?
a. Uterus
b. Ovary
c. Fallopian Tube (Ampulla-Isthmic junction)
d. Vagina
3. The process of sperm formation is called:
a. Oogenesis
b. Spermatogenesis
c. Gametogenesis
d. Embryogenesis
4. The fluid-filled cavity found in a tertiary follicle is called the:
a. Primary follicle
b. Secondary oocyte
c. Corpus luteum
d. Antrum
5. Which hormone is responsible for the descent of the testes into the scrotum in the fetus?
a. Estrogen
b. Progesterone
c. Testosterone
d. Human Chorionic Gonadotropin (hCG)
6. Implantation, the embedding of the embryo into the uterine wall, typically occurs at which stage?
a. Zygote
b. Morula
c. Blastocyst
d. Gastrula
7. Which structure in the male reproductive system produces a major component of semen (seminal fluid)?
a. Epididymis
b. Seminal Vesicles
c. Vas deferens
d. Testis
8. The lytic enzyme secreted by the sperm to help penetrate the ovum's protective layers is found in the:
a. Tail
b. Neck
c. Middle piece
d. Acrosome
9. The onset of the menstrual cycle at puberty is called:
a. Menopause
b. Gestation
c. Ovulation
d. Menarche
10. What is the correct sequence of sperm transport in the male reproductive system?
a. Vas deferens \to Epididymis \to Rete Testis \to Urethra
b. Seminiferous Tubules \to Vas deferens \to Rete Testis \to Epididymis
c. Seminiferous Tubules \to Rete Testis \to Vasa Efferentia \to Epididymis \to Vas Deferens
d. Epididymis \to Rete Testis \to Seminiferous Tubules \to Vas Deferens
11. The layer of cells surrounding the secondary oocyte that is dispersed by the sperm's acrosomal enzyme is the:
a. Vitelline membrane
b. Corona Radiata
c. Zona Pellucida
d. Theca externa
12. The placenta is formed from the tissues of:
a. Uterus only
b. Fetus only (Chorion)
c. Fetus (Chorion) and Mother (Endometrium)
d. Uterine lining and Fallopian tube
13. Which layer of the uterus undergoes cyclic changes during the menstrual cycle?
a. Perimetrium
b. Myometrium
c. Endometrium
d. Serosa
14. A primary spermatocyte is a:
a. Haploid cell
b. Diploid cell
c. Triploid cell
d. Tetraploid cell
15. The condition where one or both testes fail to descend into the scrotum is known as:
a. Castration
b. Spermiation
c. Cryptorchidism
d. Parturition
16. The structure that provides structural and nutritional support to developing sperm in the testes is:
a. Leydig cells
b. Interstitial cells
c. Sertoli cells
d. Granulosa cells
17. The primary sex organ in the human female is the:
a. Uterus
b. Fallopian tube
c. Vagina
d. Ovary
18. Which event in the menstrual cycle is triggered by a surge of Luteinizing Hormone (LH)?
a. Menstruation
b. Follicular growth
c. Ovulation
d. Implantation
19. After birth, the mammary glands produce a yellowish fluid rich in antibodies called:
a. Seminal fluid
b. Endometrium
c. Colostrum
d. Amniotic fluid
20. The final release of sperm from the seminiferous tubules is called:
a. Spermiogenesis
b. Spermiation
c. Insemination
d. Ejaculation
For a visual guide on these concepts, check out this video: Human Reproduction - Multiple Choice Questions | Class 12 Biology Chapter 2. This video contains multiple-choice questions on Human Reproduction and is directly related to your request.
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