Reproductive Biology Questions PDF

**1. What is a primordial follicle composed of?**\ **1. What stage of meiosis do oogonia stop at before birth?**\ A. Metaphase I\ B. Prophase I\ C. Anaphase I\ D. Telophase I\ E. Metaphase II **Correct Answer:** B. Prophase I **2. What surrounds the primary oocyte to form a primordial follicle?**\...

**1. What is a primordial follicle composed of?**\ **1. What stage of meiosis do oogonia stop at before birth?**\ A. Metaphase I\ B. Prophase I\ C. Anaphase I\ D. Telophase I\ E. Metaphase II **Correct Answer:** B. Prophase I **2. What surrounds the primary oocyte to form a primordial follicle?**\ A. A zona pellucida\ B. Multiple layers of granulosa cells\ C. A single layer of granulosa cells\ D. The antrum\ E. A fluid-filled vesicle **Correct Answer:** C. A single layer of granulosa cells **3. When do primordial follicles develop into primary follicles?**\ A. Before birth\ B. After fertilization\ C. During ovulation\ D. After puberty\ E. At the time of zygote formation **Correct Answer:** D. After puberty **4. What causes the development of secondary follicles?**\ A. Granulosa cells enlarging\ B. Fluid-filled vesicles forming\ C. The vesicle creating a single antrum\ D. Ovulation\ E. Corpus luteum formation **Correct Answer:** B. Fluid-filled vesicles forming **5. When does the secondary oocyte stop its development during meiosis?**\ A. At prophase I\ B. At metaphase II\ C. At metaphase I\ D. During fertilization\ E. During zygote formation **Correct Answer:** B. At metaphase II **6. What triggers the secondary oocyte to complete meiosis II?**\ A. Ovulation\ B. Fertilization by a sperm cell\ C. Formation of the corpus luteum\ D. The degeneration of the corpus albicans\ E. Completion of meiosis I **Correct Answer:** B. Fertilization by a sperm cell **7. What is the final result of fertilization?**\ A. Formation of a polar body\ B. Completion of meiosis I\ C. Formation of a zygote\ D. Release of the secondary oocyte from the ovary\ E. Development of a mature follicle **Correct Answer:** C. Formation of a zygote **8. What structure forms if fertilization does not occur after ovulation?**\ A. The zona pellucida\ B. The corpus luteum\ C. The secondary follicle\ D. The corpus albicans\ E. The zygote **Correct Answer:** D. The corpus albicans **1. What is the role of GnRH (Gonadotropin-Releasing Hormone)?**\ A. It triggers ovulation.\ B. It maintains the endometrial lining.\ C. It is released by the hypothalamus and stimulates the anterior pituitary to release LH and FSH.\ D. It inhibits FSH secretion from the anterior pituitary.\ E. It is produced by the corpus luteum. **Correct Answer:** C. It is released by the hypothalamus and stimulates the anterior pituitary to release LH and FSH. **2. What is one of the primary functions of FSH (Follicle-Stimulating Hormone)?**\ A. To stimulate ovulation\ B. To stimulate estrogen production by the follicles\ C. To maintain the corpus luteum\ D. To regulate GnRH release\ E. To maintain the endometrial lining **Correct Answer:** B. To stimulate estrogen production by the follicles **3. Which hormone triggers ovulation?**\ A. FSH\ B. Estrogen\ C. Progesterone\ D. LH\ E. Inhibin **Correct Answer:** D. LH **4. What hormone promotes the thickening of the endometrium in preparation for implantation?**\ A. Progesterone\ B. LH\ C. Estrogen\ D. hCG\ E. GnRH **Correct Answer:** C. Estrogen **5. What is the role of progesterone after ovulation?**\ A. To stimulate ovulation\ B. To maintain the endometrial lining for potential implantation\ C. To stimulate FSH release\ D. To produce estrogen\ E. To release GnRH **Correct Answer:** B. To maintain the endometrial lining for potential implantation **6. Which hormone specifically inhibits FSH release from the anterior pituitary?**\ A. LH\ B. GnRH\ C. Inhibin\ D. hCG\ E. Progesterone **Correct Answer:** C. Inhibin **7. What is the primary function of hCG (Human Chorionic Gonadotropin) during early pregnancy?**\ A. To stimulate estrogen production\ B. To trigger ovulation\ C. To inhibit GnRH release\ D. To maintain the corpus luteum for continued progesterone production\ E. To regulate LH levels **Correct Answer:** D. To maintain the corpus luteum for continued progesterone production **8. Which hormone is produced by granulosa cells and the corpus luteum?**\ A. Estrogen\ B. Inhibin\ C. LH\ D. GnRH\ E. hCG **Correct Answer:** B. Inhibin **9. What provides feedback to regulate GnRH, LH, and FSH levels?**\ A. Progesterone\ B. hCG\ C. Estrogen\ D. Inhibin\ E. FSH **Correct Answer:** C. Estrogen **10. Which hormone is responsible for stimulating the formation of the corpus luteum?**\ A. FSH\ B. GnRH\ C. Estrogen\ D. LH\ E. Progesterone **Correct Answer:** D. LH