1. What is the primary function of reproductive endocrinology in animals?
A) Regulating metabolic processes
B) Controlling growth and development
C) Regulating reproductive processes
D) Maintaining homeostasis
Answer: C) Regulating reproductive processes
2. Which of the following hormones is responsible for the initiation of puberty in mammals?
A) Estrogen
B) Progesterone
C) Testosterone
D) Follicle-stimulating hormone (FSH)
Answer: C) Testosterone
3. What hormone is primarily responsible for triggering ovulation in female mammals?
A) Estrogen
B) Progesterone
C) Follicle-stimulating hormone (FSH)
D) Luteinizing hormone (LH)
Answer: D) Luteinizing hormone (LH)
4. In males, which hormone is produced by the Leydig cells and is essential for the development of secondary sexual characteristics?
A) Estrogen
B) Progesterone
C) Testosterone
D) Follicle-stimulating hormone (FSH)
Answer: C) Testosterone
5. Which of the following hormones is responsible for stimulating the growth and maturation of ovarian follicles in females?
A) Estrogen
B) Progesterone
C) Follicle-stimulating hormone (FSH)
D) Luteinizing hormone (LH)
Answer: C) Follicle-stimulating hormone (FSH)
6. What hormone is produced by the corpus luteum after ovulation and helps maintain the uterine lining during pregnancy?
A) Estrogen
B) Progesterone
C) Follicle-stimulating hormone (FSH)
D) Luteinizing hormone (LH)
Answer: B) Progesterone
7. Which hormone is responsible for the development and maintenance of the uterine lining in preparation for implantation of a fertilized egg?
A) Estrogen
B) Progesterone
C) Follicle-stimulating hormone (FSH)
D) Luteinizing hormone (LH)
Answer: B) Progesterone
8. In males, what hormone is responsible for stimulating spermatogenesis?
A) Estrogen
B) Progesterone
C) Follicle-stimulating hormone (FSH)
D) Luteinizing hormone (LH)
Answer: C) Follicle-stimulating hormone (FSH)
9. What hormone is responsible for maintaining pregnancy and preventing the onset of new ovarian cycles during gestation?
A) Estrogen
B) Progesterone
C) Follicle-stimulating hormone (FSH)
D) Luteinizing hormone (LH)
Answer: B) Progesterone
10. Which hormone is responsible for stimulating the production of milk in the mammary glands after childbirth?
A) Estrogen
B) Progesterone
C) Prolactin
D) Oxytocin
Answer: C) Prolactin
11. What is the primary hormone responsible for initiating parturition (birth) in mammals?
A) Estrogen
B) Progesterone
C) Prolactin
D) Oxytocin
Answer: A) Estrogen
12. Which of the following hormones is responsible for stimulating uterine contractions during labor?
A) Estrogen
B) Progesterone
C) Prolactin
D) Oxytocin
Answer: D) Oxytocin
13. In females, what hormone surge triggers ovulation?
A) Estrogen
B) Progesterone
C) Luteinizing hormone (LH)
D) Prolactin
Answer: C) Luteinizing hormone (LH)
14. What hormone is responsible for the release of an egg from the ovary during ovulation?
A) Estrogen
B) Progesterone
C) Luteinizing hormone (LH)
D) Prolactin
Answer: C) Luteinizing hormone (LH)
15. Which of the following hormones is produced by the anterior pituitary gland and stimulates milk production in lactating mammals?
A) Estrogen
B) Progesterone
C) Prolactin
D) Oxytocin
Answer: C) Prolactin
16. What hormone is responsible for the let-down reflex, which facilitates milk ejection during nursing?
A) Estrogen
B) Progesterone
C) Prolactin
D) Oxytocin
Answer: D) Oxytocin
17. In males, what hormone is responsible for inhibiting the release of FSH from the pituitary gland?
A) Estrogen
B) Inhibin
C) Testosterone
D) Prolactin
Answer: B) Inhibin
18. Which hormone is primarily responsible for maintaining the structure and function of the male reproductive tract?
A) Estrogen
B) Inhibin
C) Testosterone
D) Prolactin
Answer: C) Testosterone
19. What hormone is responsible for promoting the development of ovarian follicles and the synthesis of estrogen in females?
A) Luteinizing hormone (LH)
B) Follicle-stimulating hormone (FSH)
C) Progesterone
D) Inhibin
Answer: B) Follicle-stimulating hormone (FSH)
20. Which hormone is responsible for maintaining the structure and function of the corpus luteum during early pregnancy?
A) Luteinizing hormone (LH)
B) Follicle-stimulating hormone (FSH)
C) Progesterone
D) Inhibin
Answer: C) Progesterone
21. In males, what hormone is responsible for regulating the secretion of testosterone by the Leydig cells in the testes?
A) Luteinizing hormone (LH)
B) Follicle-stimulating hormone (FSH)
C) Progesterone
D) Inhibin
Answer: A) Luteinizing hormone (LH)
22. Which of the following hormones is responsible for the development and maintenance of the male reproductive tract?
A) Estrogen
B) Testosterone
C) Prolactin
D) Oxytocin
Answer: B) Testosterone
23. What hormone is responsible for regulating the menstrual cycle in females?
A) Estrogen
B) Progesterone
C) Luteinizing hormone (LH)
D) Follicle-stimulating hormone (FSH)
Answer: A) Estrogen
24. Which hormone is responsible for stimulating the growth and development of the mammary glands during pregnancy?
A) Estrogen
B) Progesterone
C) Prolactin
D) Oxytocin
Answer: C) Prolactin
25. What hormone is responsible for maintaining the uterine lining during the first trimester of pregnancy?
A) Estrogen
B) Progesterone
C) Prolactin
D) Oxytocin
Answer: B) Progesterone
26. In males, which hormone is responsible for inhibiting the release of FSH from the pituitary gland?
A) Estrogen
B) Inhibin
C) Testosterone
D) Prolactin
Answer: B) Inhibin
27. Which of the following hormones is primarily responsible for promoting the development of ovarian follicles and the synthesis of estrogen in females?
A) Luteinizing hormone (LH)
B) Follicle-stimulating hormone (FSH)
C) Progesterone
D) Inhibin
Answer: B) Follicle-stimulating hormone (FSH)
28. What hormone is responsible for maintaining the structure and function of the corpus luteum during early pregnancy?
A) Luteinizing hormone (LH)
B) Follicle-stimulating hormone (FSH)
C) Progesterone
D) Inhibin
Answer: C) Progesterone
29. In males, what hormone is responsible for regulating the secretion of testosterone by the Leydig cells in the testes?
A) Luteinizing hormone (LH)
B) Follicle-stimulating hormone (FSH)
C) Progesterone
D) Inhibin
Answer: A) Luteinizing hormone (LH)
30. Which of the following hormones is responsible for the development and maintenance of the male reproductive tract?
A) Estrogen
B) Testosterone
C) Prolactin
D) Oxytocin
Answer: B) Testosterone
31. What hormone is responsible for regulating the menstrual cycle in females?
A) Estrogen
B) Progesterone
C) Luteinizing hormone (LH)
D) Follicle-stimulating hormone (FSH)
Answer: A) Estrogen
32. Which hormone is responsible for stimulating the growth and development of the mammary glands during pregnancy?
A) Estrogen
B) Progesterone
C) Prolactin
D) Oxytocin
Answer: C) Prolactin
33. What hormone is responsible for maintaining the uterine lining during the first trimester of pregnancy?
A) Estrogen
B) Progesterone
C) Prolactin
D) Oxytocin
Answer: B) Progesterone
34. In males, which hormone is responsible for inhibiting the release of FSH from the pituitary gland?
A) Estrogen
B) Inhibin
C) Testosterone
D) Prolactin
Answer: B) Inhibin
35. Which of the following hormones is primarily responsible for promoting the development of ovarian follicles and the synthesis of estrogen in females?
A) Luteinizing hormone (LH)
B) Follicle-stimulating hormone (FSH)
C) Progesterone
D) Inhibin
Answer: B) Follicle-stimulating hormone (FSH)
36. What hormone is responsible for maintaining the structure and function of the corpus luteum during early pregnancy?
A) Luteinizing hormone (LH)
B) Follicle-stimulating hormone (FSH)
C) Progesterone
D) Inhibin
Answer: C) Progesterone
37. In males, what hormone is responsible for regulating the secretion of testosterone by the Leydig cells in the testes?
A) Luteinizing hormone (LH)
B) Follicle-stimulating hormone (FSH)
C) Progesterone
D) Inhibin
Answer: A) Luteinizing hormone (LH)
38. Which of the following hormones is responsible for the development and maintenance of the male reproductive tract?
A) Estrogen
B) Testosterone
C) Prolactin
D) Oxytocin
Answer: B) Testosterone
39. What hormone is responsible for regulating the menstrual cycle in females?
A) Estrogen
B) Progesterone
C) Luteinizing hormone (LH)
D) Follicle-stimulating hormone (FSH)
Answer: A) Estrogen
40. Which hormone is responsible for stimulating the growth and development of the mammary glands during pregnancy?
A) Estrogen
B) Progesterone
C) Prolactin
D) Oxytocin
Answer: C) Prolactin
41. What hormone is responsible for maintaining the uterine lining during the first trimester of pregnancy?
A) Estrogen
B) Progesterone
C) Prolactin
D) Oxytocin
Answer: B) Progesterone
42. In males, which hormone is responsible for inhibiting the release of FSH from the pituitary gland?
A) Estrogen
B) Inhibin
C) Testosterone
D) Prolactin
Answer: B) Inhibin
43. Which of the following hormones is primarily responsible for promoting the development of ovarian follicles and the synthesis of estrogen in females?
A) Luteinizing hormone (LH)
B) Follicle-stimulating hormone (FSH)
C) Progesterone
D) Inhibin
Answer: B) Follicle-stimulating hormone (FSH)
44. What hormone is responsible for maintaining the structure and function of the corpus luteum during early pregnancy?
A) Luteinizing hormone (LH)
B) Follicle-stimulating hormone (FSH)
C) Progesterone
D) Inhibin
Answer: C) Progesterone
45. In males, what hormone is responsible for regulating the secretion of testosterone by the Leydig cells in the testes?
A) Luteinizing hormone (LH)
B) Follicle-stimulating hormone (FSH)
C) Progesterone
D) Inhibin
Answer: A) Luteinizing hormone (LH)
46. Which of the following hormones is responsible for the development and maintenance of the male reproductive tract?
A) Estrogen
B) Testosterone
C) Prolactin
D) Oxytocin
Answer: B) Testosterone
47. What hormone is responsible for regulating the menstrual cycle in females?
A) Estrogen
B) Progesterone
C) Luteinizing hormone (LH)
D) Follicle-stimulating hormone (FSH)
Answer: A) Estrogen
48. Which hormone is responsible for stimulating the growth and development of the mammary glands during pregnancy?
A) Estrogen
B) Progesterone
C) Prolactin
D) Oxytocin
Answer: C) Prolactin
49. What hormone is responsible for maintaining the uterine lining during the first trimester of pregnancy?
A) Estrogen
B) Progesterone
C) Prolactin
D) Oxytocin
Answer: B) Progesterone
50. In males, which hormone is responsible for inhibiting the release of FSH from the pituitary gland?
A) Estrogen
B) Inhibin
C) Testosterone
D) Prolactin
Answer: B) Inhibin
51. Which of the following hormones is primarily responsible for promoting the development of ovarian follicles and the synthesis of estrogen in females?
A) Luteinizing hormone (LH)
B) Follicle-stimulating hormone (FSH)
C) Progesterone
D) Inhibin
Answer: B) Follicle-stimulating hormone (FSH)
52. What hormone is responsible for maintaining the structure and function of the corpus luteum during early pregnancy?
A) Luteinizing hormone (LH)
B) Follicle-stimulating hormone (FSH)
C) Progesterone
D) Inhibin
Answer: C) Progesterone
53. In males, what hormone is responsible for regulating the secretion of testosterone by the Leydig cells in the testes?
A) Luteinizing hormone (LH)
B) Follicle-stimulating hormone (FSH)
C) Progesterone
D) Inhibin
Answer: A) Luteinizing hormone (LH)
54. Which of the following hormones is responsible for the development and maintenance of the male reproductive tract?
A) Estrogen
B) Testosterone
C) Prolactin
D) Oxytocin
Answer: B) Testosterone
55. What hormone is responsible for regulating the menstrual cycle in females?
A) Estrogen
B) Progesterone
C) Luteinizing hormone (LH)
D) Follicle-stimulating hormone (FSH)
Answer: A) Estrogen
56. Which hormone is responsible for stimulating the growth and development of the mammary glands during pregnancy?
A) Estrogen
B) Progesterone
C) Prolactin
D) Oxytocin
Answer: C) Prolactin
57. What hormone is responsible for maintaining the uterine lining during the first trimester of pregnancy?
A) Estrogen
B) Progesterone
C) Prolactin
D) Oxytocin
Answer: B) Progesterone
58. In males, which hormone is responsible for inhibiting the release of FSH from the pituitary gland?
A) Estrogen
B) Inhibin
C) Testosterone
D) Prolactin
Answer: B) Inhibin
59. Which of the following hormones is primarily responsible for promoting the development of ovarian follicles and the synthesis of estrogen in females?
A) Luteinizing hormone (LH)
B) Follicle-stimulating hormone (FSH)
C) Progesterone
D) Inhibin
Answer: B) Follicle-stimulating hormone (FSH)
60. What hormone is responsible for maintaining the structure and function of the corpus luteum during early pregnancy?
A) Luteinizing hormone (LH)
B) Follicle-stimulating hormone (FSH)
C) Progesterone
D) Inhibin
Answer: C) Progesterone
61. In males, what hormone is responsible for regulating the secretion of testosterone by the Leydig cells in the testes?
A) Luteinizing hormone (LH)
B) Follicle-stimulating hormone (FSH)
C) Progesterone
D) Inhibin
Answer: A) Luteinizing hormone (LH)
62. Which of the following hormones is responsible for the development and maintenance of the male reproductive tract?
A) Estrogen
B) Testosterone
C) Prolactin
D) Oxytocin
Answer: B) Testosterone
63. What hormone is responsible for regulating the menstrual cycle in females?
A) Estrogen
B) Progesterone
C) Luteinizing hormone (LH)
D) Follicle-stimulating hormone (FSH)
Answer: A) Estrogen
64. Which hormone is responsible for stimulating the growth and development of the mammary glands during pregnancy?
A) Estrogen
B) Progesterone
C) Prolactin
D) Oxytocin
Answer: C) Prolactin
65. What hormone is responsible for maintaining the uterine lining during the first trimester of pregnancy?
A) Estrogen
B) Progesterone
C) Prolactin
D) Oxytocin
Answer: B) Progesterone
66. In males, which hormone is responsible for inhibiting the release of FSH from the pituitary gland?
A) Estrogen
B) Inhibin
C) Testosterone
D) Prolactin
Answer: B) Inhibin
67. Which of the following hormones is primarily responsible for promoting the development of ovarian follicles and the synthesis of estrogen in females?
A) Luteinizing hormone (LH)
B) Follicle-stimulating hormone (FSH)
C) Progesterone
D) Inhibin
Answer: B) Follicle-stimulating hormone (FSH)
68. What hormone is responsible for maintaining the structure and function of the corpus luteum during early pregnancy?
A) Luteinizing hormone (LH)
B) Follicle-stimulating hormone (FSH)
C) Progesterone
D) Inhibin
Answer: C) Progesterone
69. In males, what hormone is responsible for regulating the secretion of testosterone by the Leydig cells in the testes?
A) Luteinizing hormone (LH)
B) Follicle-stimulating hormone (FSH)
C) Progesterone
D) Inhibin
Answer: A) Luteinizing hormone (LH)
70. Which of the following hormones is responsible for the development and maintenance of the male reproductive tract?
A) Estrogen
B) Testosterone
C) Prolactin
D) Oxytocin
Answer: B) Testosterone
71. What hormone is responsible for regulating the menstrual cycle in females?
A) Estrogen
B) Progesterone
C) Luteinizing hormone (LH)
D) Follicle-stimulating hormone (FSH)
Answer: A) Estrogen
72. Which hormone is responsible for stimulating the growth and development of the mammary glands during pregnancy?
A) Estrogen
B) Progesterone
C) Prolactin
D) Oxytocin
Answer: C) Prolactin
73. What hormone is responsible for maintaining the uterine lining during the first trimester of pregnancy?
A) Estrogen
B) Progesterone
C) Prolactin
D) Oxytocin
Answer: B) Progesterone
74. In males, which hormone is responsible for inhibiting the release of FSH from the pituitary gland?
A) Estrogen
B) Inhibin
C) Testosterone
D) Prolactin
Answer: B) Inhibin
75. Which of the following hormones is primarily responsible for promoting the development of ovarian follicles and the synthesis of estrogen in females?
A) Luteinizing hormone (LH)
B) Follicle-stimulating hormone (FSH)
C) Progesterone
D) Inhibin
Answer: B) Follicle-stimulating hormone (FSH)
76. What hormone is responsible for maintaining the structure and function of the corpus luteum during early pregnancy?
A) Luteinizing hormone (LH)
B) Follicle-stimulating hormone (FSH)
C) Progesterone
D) Inhibin
Answer: C) Progesterone
77. In males, what hormone is responsible for regulating the secretion of testosterone by the Leydig cells in the testes?
A) Luteinizing hormone (LH)
B) Follicle-stimulating hormone (FSH)
C) Progesterone
D) Inhibin
Answer: A) Luteinizing hormone (LH)
78. Which of the following hormones is responsible for the development and maintenance of the male reproductive tract?
A) Estrogen
B) Testosterone
C) Prolactin
D) Oxytocin
Answer: B) Testosterone
79. What hormone is responsible for regulating the menstrual cycle in females?
A) Estrogen
B) Progesterone
C) Luteinizing hormone (LH)
D) Follicle-stimulating hormone (FSH)
Answer: A) Estrogen
80. Which hormone is responsible for stimulating the growth and development of the mammary glands during pregnancy?
A) Estrogen
B) Progesterone
C) Prolactin
D) Oxytocin
Answer: C) Prolactin