Reproductive Biology and Assisted Reproductive Technology (ART) — DU B.Sc. (Hons.) Zoology Previous Year Question Papers

1. (A) Define the following terms (Any five): (1x5=5) a) Amenorrhea b) Ectopic pregnancy c) Fertilization d) Circhorial pulse e) Colostrum f) • Spermiogenesis (B) Differentiate between the following (Any five): a) (2x5=10) Induced ovulation and Spontaneous ovulation Acrosome reaction and Cortical Reaction c) Monoestrus and Polyestrus d) Necrospermia and Asthenozoospermia e) Menopause and Menarche Steroid and Protein hormone (C) Fill in the blanks: (Any five) (1x5=5) a) is the precursor molecule for synthesis of steroid hormones. b) Granulosa cells are luteinised under the influence of c) Testis descends into the scrotal sacs from the pelvic cavity through d) The human oocyte is arrested at _stage of meiosis before fertilization. e) f) Structure connects hypothalamus and pituitary. is primary estrogen during pregnancy. (D) Name the location and any one function of the following: (Any five). a) Thecal cells (1x5=5) 1) Leydig Cells (E) Expand and Function of the following terms (Any five): (1x5=5) 2. a) Define infertility. Discuss any four causes of female infertility. (9) b) With the help of a neat well-labeled diagram show the cellular components of the Testis. Discuss the function of cach cell. (6) 3. What is spermato genesis? Discuss the process in detail, supported by a suitable diagrats) Explain the significance of Sertoli cells and blood-testis-barrier in the process. 4. (a) Explain the process of parturition in humans. Add a note on its hormonal control. (9) (b) Discuss the changes in the reproductive tract during the menstrual cycle. (6) 5. (a) . What are different methods of contraception? Describe their mode of action. (9) (b) Describe the process of implantation in humans. Explain its types and various stages involved. 5. (a) What is assisted reproductive technology (ART)? Describe the various types of ART used in the management of Infertility (any three techniques) (b) Give an account of Hypothalamo-hypophyseal ovarian axis in regulation of menstrual cycle. (6) 6. Write short notes on (Any three): (5x3=15) a. Steroidogenesis in Fetoplacental unit b. Accessory glands of male reproductive system c. Folliculogenesis d. Sperm maturation in epididymis