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Human reproduction covers the male and female reproductive organs, gamete formation, fertilization, implantation and hormonal regulation. The menstrual cycle includes ovarian and uterine changes controlled by pituitary and ovarian hormones, while sexually transmitted diseases are studied through their causes, transmission, symptoms, prevention and effects on fertility.

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Human Reproductive SystemMenstrual CycleSexually Transmitted Diseases
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1,220 questions · page 42 of 61

821. Primary spermatocytes undergo meiotic division to form:

  • A. Spermatids
  • B. Secondary spermatocytes
  • C. Sperms
  • D. Spermatogonia

Explanation: Primary spermatocyte undergoes first meiotic division to give rise to two secondary spermatocytes which undergo second meiotic division to…

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Correct answer: Secondary spermatocytes

822. Secondary spermatocytes give rise to spermatids through:

  • A. Meiosis-I
  • B. Meiosis-II
  • C. Mitosis
  • D. Repeated division

Explanation: Spermatogonia differentiates into primary spermatophytes which undergo meiotic division to form secondary spermatocytes and spermatids…

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Correct answer: Meiosis-II

823. Secondary spermatocytes originate from:

  • A. Primary spermatocytes
  • B. Sperms
  • C. Spermatogonia
  • D. Spermatids

Explanation: Spermatogonia differentiates into primary spermatophytes which undergo meiotic division to form secondary spermatocytes and spermatids…

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Correct answer: Primary spermatocytes

824. This hormone develops the endometrium and makes it receptive for the implantation of zygote:

  • A. Estrogen
  • B. Progesterone
  • C. FSH
  • D. ICSH

Explanation: The correct answer is Progesterone. Progesterone is essential for preparing the endometrium, making it suitable for the implantation of a…

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Correct answer: Progesterone

825. The discharge of blood and cell debris from vagina at the end of reproductive cycle is called:

  • A. Gestation
  • B. After birth
  • C. Menstruation
  • D. Implantation

Explanation: The correct term for the discharge of blood and cell debris from the vagina at the end of the reproductive cycle is menstruation.

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Correct answer: Menstruation

826. The human menstrual cycle generally repeats every_days.

  • A. 26
  • B. 27
  • C. 28
  • D. 29

Explanation: The human menstrual cycle generally averages 28 days, although it can vary from person to person.

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Correct answer: 28

827. The uterine cycle in humans involve the preparation of the uterine wall to receive the_if fertilization occurs.

  • A. Ovum
  • B. Egg
  • C. Embryo
  • D. Zygote

Explanation: Uterine wall (endometrium) prepares itself for the implantation of fertilized zygote.

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Correct answer: Zygote

828. The ovary under the stimulus of_, also produce_.

  • A. FSH, LH
  • B. FSH, Estrogen
  • C. LH, FSH
  • D. Estrogen, Progesterone

Explanation: The correct answer is FSH, Estrogen. Follicle-stimulating hormone (FSH) is responsible for stimulating the ovaries to produce estrogen…

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Correct answer: FSH, Estrogen

829. On which date is a woman most likely to ovulate if the first day of menstrual cycle was first april?

  • A. 5 April
  • B. 14 April
  • C. 20 April
  • D. 28 April

Explanation: Because secretory (Luteal/postovulatory) phase has fixed number of days (15-28).

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Correct answer: 14 April

830. Primary oocyte divides meiotically to form:

  • A. Secondary oocytes
  • B. Primary oocytes
  • C. Ovum
  • D. Egg

Explanation: Based on the explanations provided, the correct answer to the question is option A) Secondary oocytes.

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Correct answer: Secondary oocytes

831. In human females, the periodic reproductive cycle is completed in approximately_days:

  • A. 20
  • B. 28
  • C. 30
  • D. 40

Explanation: Based on the explanations provided, the correct answer to the question is option B) 28 days.

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Correct answer: 28

832. This hormone develops the endometrium and make it receptive for the implantation of the zygote (placenta formation):

  • A. Androgen
  • B. FSH
  • C. LH
  • D. Progesterone

Explanation: Based on the explanations provided, the correct answer to the question is option D) Progesterone.

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Correct answer: Progesterone

833. Vascularization of endometrium is induced by:

  • A. LH
  • B. Progesterone
  • C. Estrogen
  • D. Testosterone

Explanation: Based on the explanations provided, the correct answer to the question is option C) Estrogen.

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Correct answer: Estrogen

834. Pick up the shortest phase of uterine cycle:

  • A. Menstruation phase
  • B. Proliferative phase
  • C. Secretory phase
  • D. Luteal phase

Explanation: Based on the explanations provided, the correct answer to the question is option A) Menstruation Phase.

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Correct answer: Menstruation phase

835. The hormone which stimulates and vascularizes the endometrium:

  • A. LH
  • B. FSH
  • C. Progesterone
  • D. Estrogen

Explanation: Based on the explanations provided, the correct answer to the question is option D) Estrogen.

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Correct answer: Estrogen

836. The hormone, produced by the corpus luteum, that promotes the development of the uterine lining in females is called:

  • A. LH
  • B. FSH
  • C. Progesterone
  • D. Estrogen

Explanation: Based on the explanations provided, the correct answer to the question is option C) Progesterone.

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Correct answer: Progesterone

837. Pick up the inner lining of uterus:

  • A. Ectometrium
  • B. Myometrium
  • C. Endometrium
  • D. Perimetrium

Explanation: Based on the explanations provided, the correct answer to the question is option C) Endometrium.

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Correct answer: Endometrium

838. _cycle is a reproductive cycle found in all female mammals, EXCEPT human being:

  • A. Menstrual
  • B. Ovarian
  • C. Oestrous
  • D. Uterine

Explanation: The oestrous cycle is a reproductive cycle found in most non-primate mammals, including domestic animals like dogs, cats, and cows.

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Correct answer: Oestrous

839. The release of a_is timed to coincide with the thickening of the lining of the uterus:

  • A. Polar body
  • B. Ovum
  • C. Primary oocyte
  • D. Secondary oocyte

Explanation: The correct answer is Option D: Secondary oocyte. The release of the secondary oocyte occurs during ovulation, which is coordinated with…

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Correct answer: Secondary oocyte

840. The_cycle in humans involves the preparation of the uterine wall to receive the embryo if fertilization occurs:

  • A. Menstrual
  • B. Ovarian
  • C. Uterine
  • D. Oestrous

Explanation: Based on the explanations provided, the correct answer to the question is option C) Uterine Cycle.

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Correct answer: Uterine
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