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Set 2 of 3 · Questions 31-60 of 85

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NEET Biology · Human Reproduction · Set 2 (Q31-60)

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  1. 31.
    The part of fallopian tube closest to the ovary is
    1. (1)Isthmus
    2. (2)Infundibulum
    3. (3)Cervix
    4. (4)Ampulla
  2. 32.
    Which of these is not an important component of initiation of parturition in humans?
    1. (1)Synthesis of prostaglandins
    2. (2)Release of Oxytocin
    3. (3)Release of Prolactin
    4. (4)Increase in estrogen and progesterone ratio
  3. 33.
    Which of the following events is not associated with ovulation in human female?
    1. (1)Full development of Graafian follicle
    2. (2)Release of secondary oocyte
    3. (3)LH surge
    4. (4)Decrease in estradiol
  4. 34.
    Which of the following cells during gametogenesis is normally diploid?
    1. (1)Primary polar body
    2. (2)Spermatid
    3. (3)Spermatogonia
    4. (4)Secondary polar body
  5. 35.
    Arrange the following male sex accessory ducts in the correct sequence for the transport of sperms from the testes.
    (i) Epididymis
    (ii) Ejaculatory duct
    (iii) Vasa efferentia
    (iv) Rete testis
    (v) Vas deferens
    Choose the most appropriate answer from the options given below :
    1. (1)(iv), (iii), (v), (i), (ii)
    2. (2)(iv), (iii), (i), (v), (ii)
    3. (3)(iv), (v), (i), (iii), (ii)
    4. (4)(iv), (i), (iii), (v), (ii)
  6. 36.
    Which one of the following statements is false in respect of viability of mammalian sperm?
    1. (1)Viability of sperm is determined by its motility
    2. (2)Sperms must be concentrated in a thick suspension
    3. (3)Sperm is viable for only up to 24 hours
    4. (4)Survival of sperm depends on the pH of the medium and is more active in alkaline medium
  7. 37.
    Receptors for sperm binding in mammals are present on:
    1. (1)Vitelline membrane
    2. (2)Perivitelline space
    3. (3)Zona pellucida
    4. (4)Corona radiata
  8. 38.
    A change in the amout of yolk and its distribution in the egg will affect :-
    1. (1)Fertilization
    2. (2)Formation of zygote
    3. (3)Pattern of cleavage
    4. (4)Number of blastomeres produced
  9. 39.
    Select the correct sequence for transport of sperm cells in male reproductive system.
    1. (1)Testis Epididymis Vasa efferentia Rete testis Inguinal canal Urethra
    2. (2)Seminiferous tubules Rete testis Vasa efferentia Epididymis Vas deferens Ejaculatory duct Urethra Urethral meatus
    3. (3)Seminiferous tubules Vasa efferentia Epididymis Inguinal canal Urethra
    4. (4)Testis Epididymis Vasa efferentia Vas deferens Ejaculatory duct Inguinal canal Urethra Urethral meatus
  10. 40.
    In human beings, at the end of 12 weeks (first trimester) of pregnancy, the following is observed:-
    1. (1)Eyelids and eyelashes are formed
    2. (2)Most of the major organ systems are formed
    3. (3)The head is covered with fine hair
    4. (4)Movement of the foetus
  11. 41.
    Select the correct sequence of transport of sperm cells in male reproductive system :-
    1. (1)Testis → Epididymis → Vasa efferentia → Rete testis → Inguinal canal → Urethra
    2. (2)Seminiferous tubules → Rete testis → Vasa efferentia → Epididymis → Vas deferens → Ejaculatory duct → Urethra → Urethral meatus
    3. (3)Seminiferous tubules → Vasa efferentia → Epididymis → Inguinal canal → Urethra
    4. (4)Testis → Epididymis → Vasa efferentia → Vas deferens → Ejaculatory duct → Inguinal canal → Urethra → Urethral meatus
  12. 42.
    Capacitation refers to changes in the :-
    1. (1)Ovum before fertilization
    2. (2)Ovum after fertilization
    3. (3)Sperm after fertilization
    4. (4)Sperm before fertilization
  13. 43.
    Which of the following layers in an antral follicle is acellular?
    1. (1)Theca internal
    2. (2)Stroma
    3. (3)Zona pellucida
    4. (4)Granulosa
  14. 44.
    The correct sequence of spermatogenetic stages leading to the formation of sperms in a mature human testis is :-
    1. (1)Spermatogonia – Spermatid – Spermatocyte – Sperms
    2. (2)Spermatocyte – Spermatogonia – Spermatid – Sperms
    3. (3)Spermatogonia – Spermatocyte – Spermatid – Sperms
    4. (4)Spermatid – Spermatocyte – Spermatogonia – Sperms
  15. 45.
    Hormones secreted by the placenta to maintain pregnancy are :-
    1. (1)hCG, hPL, progestogens, prolactin
    2. (2)hCG, hPL, estrogens, relaxin, oxytocin
    3. (3)hCG, hPL, progestogens, estrogens
    4. (4)hCG, progestogens, estrogens, glucocorticoids
  16. 46.
    Ectopic pregnancies are referred to as :-
    1. (1)Pregnancies terminated due to hormonal imbalance
    2. (2)Pregnancies with genetic abnormality.
    3. (3)Implantation of embryo at site other than uterus.
    4. (4)Implantation of defective embryo in the uterus
  17. 47.
    In human female, meiosis-II is not completed until?
    1. (1)Fertilization
    2. (2)Uterine implantation
    3. (3)Birth
    4. (4)Puberty
  18. 48.
    Receptors for sperm binding in mamma are present on:-
    1. (1)Corona radiata
    2. (2)Vitelline membrane
    3. (3)Perivitelline space
    4. (4)Zona pellucida
  19. 49.
    Which of the following hormone levels will cause release of ovum (ovulation) from the Graafian follicle?
    1. (1)High concentration of Progesterone
    2. (2)Low concentration of LH
    3. (3)Low concentration of FSH
    4. (4)High concentration of Estrogen
  20. 50.
    Withdrawal of which of the following hormones is the immediate cause of menstruation?
    1. (1)Estrogen
    2. (2)FSH
    3. (3)FSH–RH
    4. (4)Progesterone
  21. 51.
    Select the correct option describing gonadotropin activity in a normal pregnant female.
    1. (1)High level of FSH and LH stimulates the thickening of endometrium.
    2. (2)High level of FSH and LH facilitates implantation of the embryo.
    3. (3)High level of hCG stimulates the synthesis of estrogen and progesterone.
    4. (4)High level of hCG stimulates the thickening of endometrium.
  22. 52.
    Which one of the following statements is false with respect to the viability of mammalian sperm?
    1. (1)Sperm is viable for only up to 24 hours.
    2. (2)Survival of sperm depends on the pH of the medium and is more active in alkaline medium.
    3. (3)Viability of sperm is determined by its motility.
    4. (4)Sperms must be concentrated in a thick suspension.
  23. 53.
    In human females, meiosis-II is not completed until?
    1. (1)birth
    2. (2)puberty
    3. (3)fertilization
    4. (4)uterine implantation
  24. 54.
    No new follicles develop in the luteal phase of the menstrual cycle because :-
    1. (1)Follicles do not remain in the ovary after ovulation
    2. (2)FSH levels are high in the luteal phase
    3. (3)LH levels are high in the luteal phase
    4. (4)Both FSH and LH levels are low in the luteal phase
  25. 55.
    In a normal pregnant woman, the amount of total gonadotropin activity was assessed. The result expected was
    1. (1)High level of circulating FSH and LH in the uterus to stimulate implantation of the embryo.
    2. (2)High level of circulating HCG to stimulate endometrial thickening.
    3. (3)High level of FSH and LH in uterus to stimulate endometrial thickening.
    4. (4)High level of circulating HCG to stimulate estrogen and progesterone synthesis.
  26. 56.
    Extrusion of second polar body from egg nucleus occurs:
    1. (1)After entry of sperm but before fertilisation
    2. (2)After fertilisation
    3. (3)Before entry of sperm into ovum
    4. (4)Simultaneously with first cleavage
  27. 57.
    Which of the following depicts the correct pathway of transport of sperms?
    1. (1)Rete testis → Epididymis → Efferent ductules → Vas deferens
    2. (2)Rete testis → Vas deferens → Efferent ductules → Epididymis
    3. (3)Efferent ductules → Rete testis → Vas deferens → Epididymis
    4. (4)Rate Testis → Efferent ductules → Epididymis → Vas deferens
  28. 58.
    Which of these is not an important component of initiation of parturition in humans?
    1. (1)Synthesis of prostaglandins
    2. (2)Release of oxytocin
    3. (3)Release of prolactin
    4. (4)Increase in estrogen and progesterone
  29. 59.
    The second maturation division of the mammalian ovum occurs :-
    1. (1)In the Graafian follicle following the first maturation division
    2. (2)Shortly after ovulation before the ovum makes entry into the Fallopian tube
    3. (3)Until after the ovum has been penetrated by a sperm
    4. (4)Until the nucleus of the sperm has fused with that of the ovum
  30. 60.
    The secretory phase in the human menstrual cycle is also called
    1. (1)Follicular phase lasting for about 6 days.
    2. (2)Luteal phase and lasts for about 13 days.
    3. (3)Follicular phase and lasts for about 13 days.
    4. (4)Luteal phase and lasts for about 6 days.