MCQs On Sexual Reproduction in Humans For NEET, AIIMS and JIPMER

MCQs On Sexual Reproduction in Humans For NEET, AIIMS and JIPMER

Here We discuss about sexually reproduction in humans all objective types of questions and answer and class 12 biology Human reproduction involves sexual intercourse between a man and a woman. Human Reproduction Questions and Answers made by thelivelearns team are the most important part of NEET and others Competitive Exams. These objective questions of human reproduction are prepared from NCERT. Here we also covers all human reproduction important question which are asked in previous years in NEET, AIIMS, JIPMER exam.

51. The ________ is an ovoviviparous animal

(A) Basking shark

(B) Bonobo

(C) Blue shark

(D) None of the above

Answer: Basking shark

52. Graffian follicle is formed from:

(A) Primary follicle

(B) Secondary follicle

(C) Tertiary follicle

(D) None

Answer: Tertiary follicle

53. Polarbodies are formed during:

(A) Spermatogenesis

(B) Oogenesis

(C) Embryogenesis

(D) All

Answer: Oogenesis

54. What is common in both sperms and ovum?

(A) Haploidity

(B) Diploidity

(C) Polyploidity

(D) Presence of acrosome

Answer: Haploidity

55. First meiotic division during oogenesis takes place:

(A) After ovulation

(B) Prior to ovulation

(C) During embryogenesis

(D) None

Answer: After ovulation

56. Appearance of first menstruation at puberty is called:

(A) Menopause

(B) Menarche

(C) Fertility

(D) Sterility

Answer: Menarche

57. Luteal phase during a menstrual cycle is also known as:

(A) Proliferative phase

(B) Secretory phase

(C) Reductive phase

(D) Regenerative phase

Answer: Secretory phase

58. Function of corpus luteum is to secrete:

(A) Progesterone

(B) Estrogen

(C) Testosterone

(D) All

Answer: Progesterone

59. Cessation of menstrual cycle is termed as:

(A) Menarche

(B) Menopause

(C) Sterility

(D) Abortion

Answer: Menopause

60. Whether human females are:

(A) Homogametic

(B) Heterogametic

(C) Agametic

(D) Monogametic

Answer: Homogametic

61. Colostrum is rich in:

(A) Antigens

(B) Antibodies

(C) Interferons

(D) All

Answer: Antibodies

62. What is the function of oxytocin is:

(A) Contraction of uterine muscles

(B) To lower the blood pressure

(C) To secrete milk

(D) To expand the ligament

Answer: Contraction of uterine muscles

63. Milk in mammary glands is secreted by:

(A) Acinar cells

(B) Hepatic cells

(C) Chondrocytes

(D) Cells of alveoli

Answer: Cells of alveoli

64. A crosome is a part of:

(A) Chromosome

(B) Ribosome

(C) Oxysome

(D) Spermatozoan

Answer: Spermatozoan

65. What would be the fate of menstruation if the ovum is not fertilized?

(A) Occurs for 3-5 days

(B) Does not occur

(C) Occurs for 5-10 days

(D) Occurs irregularly

Answer: Occurs for 3-5 days

66. Umbilical lies between:

(A) Embryo and placenta

(B) Perimetrium and ovary

(C) vary and fallopian tube

(D) Placenta and ovary

Answer: Embryo and placenta

67. Relaxin is secreted by:

(A) Endometrium

(B) Ovary

(C) Pituitary gland

(D) Hypothalamus

Answer: Ovary

68. Uterus is commonly called as:

(A) Body cavity

(B) Womb

(C) Stomach

(D) Bladder

Answer: Womb

69. Number of testicular lobules found in each testis is:

(A) 50

(B) 100

(C) 150

(D) 250

Answer: 250

70. Number of mammary lobes in each mammary gland is:

(A) 15-20

(B) 50-100

(C) 100-150

(D) 200

Answer: 15-20

71. The cells of morula are known as:

(A) Blastocysts

(B) Oviblasts

(C) Oviclasts

(D) Blastomeres

Answer: Oviblasts

72. Corona radiate lies:

(A) External to the zona pellucida

(B) Internal to the zona pellucida

(C) Along with periviteline space

(D) A & C

Answer: External to the zona pellucida

73. Which part of the blastocyst attaches with the surface of endometrium?

(A) Inner cell mass

(B) Trophoblast

(C) Ectoderm

(D) Mesoderm

Answer: Trophoblast

74. The nature of post zygotic divisions is of:

(A) Amitotic

(B) Mitotic

(C) Meiotic

(D) Iregular

Answer: Mitotic

75. Chorionc villi appear on:

(A) Endometrium

(B) Trophoblast

(C) Myometrium

(D) Perimetrium

Answer: Trophoblast

76. Which of the following is a placental homone?

(A) Human chorionic gonadotropin

(B) Relaxin

(C) Oxytocin

(D) None

Answer: Human chorionic gonadotropin

77. Stem cells are the part of:

(A) Inner cell mass

(B) Ectoderm

(C) Endoderm

(D) Mesoderm

Answer: Inner cell mass

78. First trimester period is:

(A) 12 weeks

(B) 24 weeks

(C) 36 weeks

(D) 4 weeks

Answer: 12 weeks

79. The first appearance of limbs and external genitalia take place during:

(A) 1st trimester

(B) 2nd trimester

(C) 3d trimester

(D) None

Answer: 1st trimester

80. Delivery of the fetus after 9 months is known as:

(A) Gestation

(B) Gastrulation

(C) Parturition

(D) Implantation

Answer: Parturition

81. The _________ is a temporary organ that connects a mammalian mother to its foetus

(A) Placenta

(B) Chorion

(C) Endometrium

(D) None of the above

Answer: Placenta

82. Division of human egg is __________

(A) Holoblastic and unequal

(B) Meroblastic

(C) Holoblastic and equal

(D) Isoblastic

Answer: Holoblastic and unequal

83. The lytic enzyme released y sperm is _________

(A) Ligase

(B) Acrosome

(C) Androgamone

(D) Hyaluronidase

Answer: Hyaluronidase

84. Number of autosomes in human primary spermatocyte is _________

(A) 46

(B) 44

(C) 23

(D) 22

Answer: 44

85. Ovum receives the sperm in the region of _________

(A) Animal pole

(B) Equator

(C) Vegetal pole

(D) Pigmented area

Answer: Vegetal pole

86. Which of the following organ is devoid of gland?

(A) Vulva

(B) Oviduct

(C) Uterus

(D) Vagina

Answer: Oviduct

87. Among the following stem cells which are found in the umbilical cord?

(A) Embryonic stem cells

(B) Adult stem cells

(C) Cord blood stem cells

(D) Blood stem cells

Answer: Cord blood stem cells

88. Human sperm moves with the help of _________

(A) Cilia

(B) Flagellum

(C) Basal body

(D) Nucleosome

Answer: Flagellum

89. Cryptorchidism is a condition in which _________

(A) Male hormones are not reactive

(B) Ovaries are removed

(C) Sperms are not formed

(D) Testes fail to descend in scrotal sacs

Answer: thoracic cavity from abdominal cavity

90. Bidder’s canal is meant for the passage of _________

(A) Sperms

(B) Urine

(C) Ova

(D) Saline

Answer: Sperms

 91. Lower narrow end of uterus is called

(a) urethra

(b) cervix

(c) clitoris

(d) vulva.

Answer: (b) cervix

92.Bartholin’s glands are situated

(a) on the either side of vagina in humans

(b) on either side of vas deferens in humans

(c) on either side of penis in humans

(d) on either side of Fallopian tube in humans.

Answer: (a) on the either side of vagina in humans

93. In human adult females oxytocin

(a) stimulates pituitary to secrete vasopressin

(b) causes strong uterine contractions during parturition

(c) is secreted by anterior pituitary

(d) stimulates growth of mammary glands.

Answer: (b) causes strong uterine contractions during parturition

94. The third stage of parturition is called “after-birth”. In this stage

(a) excessive bleeding occurs

(b) fetus is bom and cervix and vagina contraction to normal condition happens

(c) fetus is bom and contraction of uterine wall prevents excessive bleeding

(d) placenta is expelled out.

Answer:(d) placenta is expelled out.

95.After birth, colostrum is released from mammary glands which is rich in

(a) fat and low in proteins

(b) proteins and low in fat

(c) proteins, antibodies and low in fat

(d) proteins, fat and low in antibodies.

Answer: (c) proteins, antibodies and low in fat

96. Spot the odd one out from the following structures with reference to the male reproductive system.

(a) Rate testis

(b) Epididymis

(c) Vasa efferentia

(d) Isthmus

Answer: (d) Isthmus

97. Seminal plasma, the fluid part of semen, is contributed by

(i) seminal vesicle

(ii) prostate

(iii) urethra

(iv) bulbourethral gland

(a) (i) and (ii)

(b) (i), (ii) and (iv)

(c) (ii), (iii) and (iv)

(d) (i) and (iv)

Answer: (b) (i), (ii) and (iv)

98. In humans, at the end of the first meiotic division, the male germ cells differentiate into the

(a) spermatids

(b) spermatogonia

(c) primary spermatocytes

(d) secondary spermatocytes.

Answer: (d) secondary spermatocytes.

99. How many sperms are formed from a secondary spermatocyte ?

(a) 4

(b) 8

(c) 2

(d) 1

Answer: (c) 2

100. How many sperms are formed from 4 primary spermatocytes ?

(a) 4

(b) 1

(c) 16

(d) 32

Answer: (c) 16

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