These 50 MCQs cover all the essential concepts of Human Reproduction, making them crucial for NEET, Class 12 Board Exams, and other competitive exams. Here's why they are important:
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Which of the following is the primary sex organ in males?
a) Penis
b) Testis
c) Vas deferens
d) Epididymis
Ans: b) Testis -
The site of sperm maturation and storage is:
a) Seminiferous tubules
b) Vas deferens
c) Epididymis
d) Prostate gland
Ans: c) Epididymis -
Which hormone stimulates the production of sperm in males?
a) LH
b) FSH
c) Oxytocin
d) Estrogen
Ans: b) FSH -
The hormone responsible for the development of secondary sexual characters in males is:
a) Estrogen
b) Testosterone
c) Progesterone
d) Oxytocin
Ans: b) Testoste 
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The process of formation of sperm is called:
a) Oogenesis
b) Gametogenesis
c) Spermatogenesis
d) Embryogenesis
Ans: c) Spermatogenesis -
How many sperm cells are produced from one primary spermatocyte?
a) 1
b) 2
c) 4
d) 8
Ans: c) 4 -
The number of chromosomes in a human sperm is:
a) 23
b) 46
c) 22
d) 44
Ans: a) 23 -
Which of the following is the female gonad?
a) Uterus
b) Vagina
c) Ovary
d) Cervix
Ans: c) Ovary -
The phase of the menstrual cycle in which ovulation occurs is:
a) Follicular phase
b) Luteal phase
c) Menstrual phase
d) Ovulatory phase
Ans: d) Ovulatory phase -
Which hormone is secreted in large amounts just before ovulation?
a) LH
b) FSH
c) Estrogen
d) Progesterone
Ans: a) LH -
The part of the sperm that contains enzymes to penetrate the egg is:
a) Acrosome
b) Nucleus
c) Mitochondria
d) Tail
Ans: a) Acrosome -
The process of fusion of male and female gametes is called:
a) Implantation
b) Ovulation
c) Fertilization
d) Gestation
Ans: c) Fertilization -
Fertilization in humans occurs in:
a) Uterus
b) Vagina
c) Fallopian tube
d) Ovary
Ans: c) Fallopian tube -
Which layer of the uterus is shed during menstruation?
a) Myometrium
b) Endometrium
c) Perimetrium
d) Chorion
Ans: b) Endometrium -
Which hormone is called the "pregnancy hormone"?
a) LH
b) FSH
c) Progesterone
d) Estrogen
Ans: c) Progesterone -
The hormone responsible for the maintenance of the corpus luteum is:
a) LH
b) FSH
c) hCG
d) Oxytocin
Ans: c) hCG -
Which hormone is responsible for milk ejection?
a) Prolactin
b) Oxytocin
c) Estrogen
d) Progesterone
Ans: b) Oxytocin -
Which structure helps in implantation of the embryo?
a) Zygote
b) Morula
c) Blastocyst
d) Gastrula
Ans: c) Blastocyst -
The placenta is formed from:
a) Trophoblast
b) Endoderm
c) Myometrium
d) Epididymis
Ans: a) Trophoblast -
The fluid-filled sac that protects the fetus is called:
a) Amnion
b) Chorion
c) Placenta
d) Umbilical cord
Ans: a) Amnion -
The normal duration of human pregnancy is:
a) 200 days
b) 280 days
c) 300 days
d) 240 days
Ans: b) 280 days -
Which hormone is released during labor for uterine contractions?
a) Progesterone
b) Oxytocin
c) hCG
d) FSH
Ans: b) Oxytocin -
The function of the umbilical cord is to:
a) Carry oxygen to the fetus
b) Supply nutrients
c) Remove waste
d) All of the above
Ans: d) All of the above -
The first secretion of the mammary glands after childbirth is called:
a) Milk
b) Amniotic fluid
c) Colostrum
d) Placenta
Ans: c) Colostrum -
The structure that prevents polyspermy is:
a) Chorion
b) Zona pellucida
c) Endometrium
d) Trophoblast
Ans: b) Zona pellucida -
The finger-like projections of the fallopian tube are called:
a) Villi
b) Fimbriae
c) Cilia
d) Flagella
Ans: b) Fimbriae -
Which part of the sperm contains mitochondria?
a) Head
b) Middle piece
c) Tail
d) Acrosome
Ans: b) Middle piece -
The male accessory gland that produces an alkaline secretion is:
a) Prostate gland
b) Seminal vesicle
c) Bulbourethral gland
d) Epididymis
Ans: a) Prostate gland -
Which hormone initiates puberty in males?
a) Estrogen
b) Progesterone
c) Testosterone
d) Oxytocin
Ans: c) Testosterone -
Which structure in females produces eggs?
a) Uterus
b) Fallopian tube
c) Ovary
d) Vagina
Ans: c) Ovary
31. Which part of the female reproductive system serves as the site of implantation?
a) Ovary
b) Fallopian tube
c) Uterus
d) Cervix
Ans: c) Uterus
32. The function of the corpus luteum is to produce:
a) LH
b) FSH
c) Progesterone
d) Oxytocin
Ans: c) Progesterone
33. The release of the ovum from the ovary is called:
a) Fertilization
b) Implantation
c) Ovulation
d) Parturition
Ans: c) Ovulation
34. Which hormone is responsible for the stimulation of the mammary glands for milk production?
a) Prolactin
b) Oxytocin
c) Estrogen
d) LH
Ans: a) Prolactin
35. The primary function of the testes is:
a) Production of sperm
b) Production of testosterone
c) Both a and b
d) None of the above
Ans: c) Both a and b
36. The presence of which hormone indicates pregnancy in a woman?
a) Estrogen
b) Progesterone
c) hCG
d) LH
Ans: c) hCG
37. Which of the following is a part of the sperm tail?
a) Axial filament
b) Acrosome
c) Mitochondria
d) Nucleus
Ans: a) Axial filament
38. Which of the following is not a male accessory gland?
a) Seminal vesicle
b) Prostate gland
c) Bulbourethral gland
d) Fallopian tube
Ans: d) Fallopian tube
39. Which hormone maintains the thickness of the endometrium during pregnancy?
a) LH
b) FSH
c) Progesterone
d) Estrogen
Ans: c) Progesterone
40. The process of formation of an ovum is called:
a) Gametogenesis
b) Oogenesis
c) Spermatogenesis
d) Fertilization
Ans: b) Oogenesis
41. Which layer of the embryo develops into the nervous system?
a) Endoderm
b) Mesoderm
c) Ectoderm
d) Chorion
Ans: c) Ectoderm
42. The end of the menstrual cycle, occurring typically around the age of 45-50, is called:
a) Ovulation
b) Menstruation
c) Menopause
d) Fertilization
Ans: c) Menopause
43. The fluid-filled structure that protects the fetus is called:
a) Chorion
b) Amniotic sac
c) Placenta
d) Umbilical cord
Ans: b) Amniotic sac
44. Which of the following structures connects the fetus to the placenta?
a) Uterus
b) Fallopian tube
c) Umbilical cord
d) Cervix
Ans: c) Umbilical cord
45. Which part of the sperm helps in penetrating the ovum?
a) Middle piece
b) Acrosome
c) Tail
d) Nucleus
Ans: b) Acrosome
46. What is the main function of the seminal vesicle secretion?
a) Energy supply for sperm
b) Sperm storage
c) Fertilization
d) Implantation
Ans: a) Energy supply for sperm
47. Which hormone causes the growth of follicles in the ovary?
a) LH
b) FSH
c) Estrogen
d) Progesterone
Ans: b) FSH
48. What prevents the entry of additional sperm into the egg after fertilization?
a) Corpus luteum
b) Zona pellucida reaction
c) Placenta
d) Oxytocin
Ans: b) Zona pellucida reaction
49. Which phase of the menstrual cycle is characterized by a rise in estrogen levels?
a) Luteal phase
b) Menstrual phase
c) Follicular phase
d) Ovulatory phase
Ans: c) Follicular phase
50. Which of the following is the outermost layer of the blastocyst?
a) Epiblast
b) Hypoblast
c) Trophoblast
d) Amnion
Ans: c) Trophoblast
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