Here are about 57 multiple choice questions from Chapter Human Reproduction Class 12. One of the very important chapters for NEET exam is human reproduction( Class 12).
1. Temperature in scrotum necessary for sperm formation should be
(1) 2°C above body temperature
(2) 2°C below body temperature
(3) 8°C above body temperature
(4) 8°C below body temperature
2. Cryptorchidism is
(1) Non-development of testes
(2) Nondescent of testes into scrotum
(3) Removal of scrotum
(4) Breaking connection of vas deferens
3. Tubuli recti of seminiferous tubules open into
(1) Epididymis
(2) Vasa efferentia
(3) Vasa deferentia
(4) Rete testis
4. Common duct formed by the union of vas deferens and duct of seminal vesicle is
(1) Urethra
(2) Tunica vasculosa
(3) Ejaculatory duct
(4) Spermatic duct
5. Accessory glands of male reproductive system are
(1) Prostate and seminal vesicles
(2) Prostate, Bartholin’s and seminal vesicles
(3) Seminal vesicles and Bartholin’s
(4) Prostate, Cowper’s and seminal vesicles
6. Scrotal sacs of man are connected with the abdominal cavity by
(1) Inguinal canal
(2) Haversian canal
(3) Spermatic canal
(4) Rete testis
7. Sperms are stored and nourished inside
(1) Cowper’s gland
(2) Epididymis
(3) Seminiferous tubules
(4) Vasa efferentia
8. Role of Leydig cells of testis is
(1) Provide nourishment to sperms
(2) Provide motility to sperms
(3) Bring about maturation of sperms
(4) Synthesis of testosterone hormone
9. Vas deferens arises from
(1) Cauda epididymis
(2) Caput epididymis
(3) Corpus epididymis
(4) Rete testis
10. Epididymis is
(1) Network of sinuses between seminiferous tubules and vasa efferentia
(2) Intermediate structure between rete testis and vasa efferentia
(3) A long coiled tube between vasa efferentia and vas deferens
(4) Connection between vas deferens and seminal vesicle
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11. Mesovarium is the peritoneal covering of
(1) Ovary
(2) Testis
(3) Kidney
(4) Liver
12. Ostium is an aperture present in
(1) Ampulla part
(2) Fallopian funnel
(3) Ovisac
(4) Cloaca
13. Lower narrow end of uterus is called
(1) Urethra
(2) Cervix
(3) Clitoris
(4) Vulva
14. Which group represents external genitalia of human female?
(1) Labium minora, labium majora, vagina
(2) Labium majora, labium minora, oviduct
(3) Labium minora, labium majora, cervix
(4) Labium majora, labium minora, clitoris
15. Layers of ovum from outside to inside are
(1) Corona radiata, zona pellucida, vitelline membrane
(2) Zona pellucida, corona radiata, vitelline membrane
(3) Vitelline membrane, zona pellucida, corona radiata
(4) Zona pellucida, vitelline membrane, corona radiata
16. In human females, ova are produced in
(1) Ovary
(2) Oviduct
(3) Uterus
(4) Vagina
17. Hormone responsible for ovulation and development of corpus luteum is
(1) FSH
(2) LH
(3) LTH
(4) ICSH
18. When egg is not fertilised, yellow coloured corpus luteum degenerates to form
(1) Corpus albicans
(2) Corpus callosum
(3) Corpora bigemina
(4) Corpora quadrigemina
19. In the absence of pregnancy, corpus luteum
(1) Becomes active and secretes FSH and LH
(2) Produces a lot of oxytocin and relaxin
(3) Degenerates after some time
(4) Is maintained by progesterone
20. Egg is liberated from ovary and enters the fallopian tube in
(1) Secondary oocyte stage
(2) Primary oocyte stage
(3) Oogonial stage
(4) Mature ovum stage
21. During spermatogenesis, meiosis occurs in
(1) Primary spermatocytes
(2) Secondary spermatocytes
(3) Both (1) & (2)
(4) Spermatogonia
22. Spermiogenesis changes
(1) Spermatogonium to primary spermatocytes
(2) Primary spermatocytes to secondary spermatocytes
(3) Secondary spermatocytes to spermatids
(4) Spermatids to sperms
23. In spermatogenesis, a primary spermatocyte produces four similar sperms while in oogenesis a primary oocyte forms
(1) Four similar ova
(2) Three large ova and one polar body
(3) Two large ova and two polar bodies
(4) One large ova and 2-3 polar bodies
24. Minute cells separating from ova are
(1) Primary oogonia
(2) Polar bodies
(3) Secondary oogonia
(4) Primary spermatogonia
25. What are the diploid stages in spermatogenesis?
(1) Spermatogonia and spermatids
(2) Spermatogonia and primary spermatocytes
(3) Spermatogonia and sperms
(4) Primary spermatocytes and secondary spermatocytes
26. Extrusion of second polar body from egg nucleus occurs
(1) After entry of sperm and before completion of fertilization
(2) After completion of fertilization
(3) Before the entry of sperm
(4) Without any relation with sperm entry
27.Spermatogenesis and sperm differentiation are under the control of
(1) FSH only
(2) LH
(3) Testosterone and FSH
(4) Parathyroid hormone
28. Middle piece of mammalian sperm possesses
(1) Mitochondria
(2) Centriole only
(3) Acrosome
(4) Nucleus and mitochondria
29. A change in ovum after penetration of sperm is
(1) Formation of first polar body
(2) Second meiosis starts
(3) First meiosis
(4) Formation of second polar body
30. Which of the following structures produces energy for the mobility of mature sperm?
(1) Nucleus in head region
(2) Mitochondria in head region
(3) Axial filament in tail
(4) Mitochondria in middle piece
31. In menstrual cycle of 28/29 days, ovum is released during
(1) Beginning of the cycle
(2) Middle of the cycle
(3) End of the cycle
(4) Any time during the cycle
32. Loss of reproductive capacity in women after the age of 45 years is
(1) Menstruation
(2) Ageing
(3) Menopause
(4) Menarche
33. The correct sequence of hormones secreted from the beginning of menstrual cycle is
(1) FSH, estrogen, progesterone
(2) Estrogen, FSH, progesterone
(3) FSH, progesterone
(4) Estrogen, progesterone, FSH
34. Phase of menstrual cycle in human that lasts for 7-8 days is
(1) Follicular phase
(2) Ovulatory phase
(3) Luteal phase
(4) Menstruation
35. Menstrual cycle occurs in
(1) All females
(2) Mammalian females
(3) Primate females
(4) Rabbits
36. Withdrawl of which hormone is the immediate cause of menstruation?
(1) Estrogen
(2) FSH
(3) FSH-LH
(4) Progesterone
37. LH surge occurs during which phase of menstrual cycle?
(1) Menstrual phase
(2) Beginning of proliferative phase
(3) Secretory phase
(4) At the middle of the cycle
38. Stage of embryo development at which implantation occurs in human female is
(1) Morula
(2) Zygote
(3) Blastocyst
(4) Transient 3-celled stage
39. In ectopic pregnancy, foetus grows in
(1) Fundus part of uterus
(2) Fallopian tube
(3) Uterus
(4) Both (1) & (3)
40. Which of the following statements is incorrect?
(1) Fertilization occurs in fallopian tube
(2) Fertilization is a physio-chemical process/event
(3) Cleavage produces morula
(4) Cleavage leads to increased mass of protoplasm
41. Cortical granules are associated with
(1) Oogenesis
(2) Spermatogenesis
(3) Cleavage
(4) Fertilization
42. Termination of gastrulation is marked by
(1) Closure of primitive gut
(2) Obliteration of archenteron
(3) Obliteration of blastocoel
(4) Closure of neural tube
43. Onset of pregnancy
(1) Stimulates testosterone secretion
(2) Leads to degeneration of ovary
(3) Inhibits further ovulation
(4) Inhibits fusion of egg and sperm nuclei
44. Site of fertilization in a mammal is
(1) Ovary
(2) Uterus
(3) Vagina
(4) Fallopian tube
45. Gastrulation comprises
(1) Morphogenetic movements
(2) Differentiation of archenteron
(3) Differentiation of three germ layers
(4) All of these
46. After a sperm has penetrated an ovum, the entry of other sperms is prevented by
(1) Condensation of yolk
(2) Formation of pigment coat
(3) Development of vitelline membrane
(4) Development of fertilization membrane
47.Two offsprings developed in the same uterus from fertilisation of two different ova are
(1) Monozygotic twins
(2) Dizygotic twins
(3) Fraternal twins
(4) Both (2) & (3)
48.Hormone administered for hastening child birth is meant for
(1) Stimulating the striped muscles
(2) Raising blood pressure
(3) Increasing energy availability
(4) Contraction of smooth muscles
49. Gestation period in human is
(1) 10 weeks
(2) 28 weeks
(3) 32 weeks
(4) 38 weeks
50. Extra-embryonic membrane amnion provides
(1) Cells to embryo
(2) Protection to embryo
(3) Nutrition to embryo
(4) Both (1) & (2)
51. Active inrolling of endodermal and mesodermal cells into interior of embryo is
(1) Ingression
(2) Involution
(3) Inversion
(4) Epiboly
52. Placenta is
(1) Channel for providing essential requirements for growth of embryo
(2) Storage organ
(3) Conductor for nerve impulse
(4) Meant for protection of embryo from shocks
53. During embryonic development, which of the following is formed first?
(1) Heart
(2) Brain
(3) Neural tube
(4) Skin
54. Which of the following are the derivatives of endoderm?
(1) Muscles and blood
(2) Alimentary canal and respiratory organs
(3) Excretory and reproductive organs
(4) Skin and nerve cord
55. Which of the following are mesodermal and endodermal in origin respectively?
(1) Urinary bladder – Kidney
(2) Kidney – Inner lining of urinary bladder
(3) Urinary ducts – Genital ducts
(4) Genital ducts – Urinary ducts
56.Find the incorrect match w.r.t. increase in the levels of following hormones
(1) Oxytocin – Uterine contraction during labour
(2) Prolactin – Lactation after child birth
(3) Progesterone – Uterine contraction
(4) Luteinising hormone – Stimulates ovulation
57. Kidneys, heart and gonads are formed from
(1)Ectoderm
(2) Endoderm
(3) Inner cell mass
(4) Mesoderm
Human reproduction Class 12 is one of the most important chapters for your NEET exam. It has a lot of figures also and is very interesting to read as well. You need to prepare the human reproduction class 12 chapter by heart. Read each and every line of NCERT.