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Human Reproduction Test - 56

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Human Reproduction Test - 56
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  • Question 1
    1 / -0
    The fluid which is rich in calcium fibrinolysin and acid phosphatase and contributes about 30% of the total volume of semen, is released by
    Solution
    • The prostate gland is the organ of the male reproductive system.
    • It releases the fluid which is rich in calcium fibrinolysin and acid phosphatase and contributes about 30% of the total volume of semen.
    • This is one of the male accessory glands.
    So, the correct answer is option B.
  • Question 2
    1 / -0
    Arrange the following with regard to their occurrence in spermatogenesis.
    (a) Spermatogonia (b) Secondary spermatocyte (c) Spermatogonial stem cells (d) Primary spermatocyte (e) Spermatid
    Solution
    • Spermatogenesis is the process in which spermatozoa (male gametes) are formed from the primordial germ cells.
    • Spermatogonia are produced by the differentiation of the spermatogonial stem cell. This spermatogonium undergoes mitosis to produce 2 primary spermatocytes.
    • This primary spermatocyte will undergo meiosis I to produce two haploid secondary spermatocytes. These two secondary spermatocytes undergo meiosis II to form four haploid spermatids. 
    • Each spermatid then forms spermatozoa by the process of spermiogenesis.
    Thus, the correct answer is option B.

  • Question 3
    1 / -0
    The Bartholin's gland is homologous to which of the following glands in males?
    Solution
    According to female human anatomy,
    Clitoris in female is homologous to glans penis of the males
    Skene's glands are homologous with the prostate gland in males, Below and to either side of the urethral orifice are openings of two small ducts leading to the paired lesser vestibular glands (Skene’s glands).
    Bartholin's gland in females secrete mucus and are homologous to the bulbourethral glands of the male.
    So, the correct answer is 'Bulbourethral glands'
  • Question 4
    1 / -0
    Menstrual cycle starts at  the ________________
    Solution
    • Adolescence is the period following the onset of puberty during which a child matures into an adult. 
    • The years from puberty to adulthood may be roughly divided into three stages i.e., early adolescence, generally ages eleven to fourteen, middle adolescence, ages fifteen to seventeen, and late adolescence, ages eighteen to twenty-one. 
    • The menstrual cycle is a natural change that occurs in the female reproductive. 
    • It begins between twelve and fifteen years of age, therefore considered to be occurring at the early adolescence stage.
    So, the correct answer is option A.
  • Question 5
    1 / -0
    Which of the following statements are related to Bartholin's gland?
    Solution
    The Bartholin's gland is the small glands which are located on the lateral and posterior sides of the vaginal opening. These glands are responsible for the secretion of the mucus which helps in the lubrication of the vaginal tract. The gland is considered as similar to the bulbourethral glands in the males. 
    Thus, the correct answer is 'Both A and B'.
  • Question 6
    1 / -0
     Skene's glands are homologous to .......... gland in males.
    Solution
    The skene's gland is the glands located in the vaginal wall of the females. The gland is responsible for the production of the lubricating fluid in the vaginal canal. The gland is similar in function to the prostate gland which secretes the prostate fluid in the semen. 
    Thus, the correct answer is option A. 
  • Question 7
    1 / -0
    Two individuals produced from a single zygote are 
    Solution
    When the same zygote undergoes cleavage and the two cells which are formed after cleavage get separated, this results in the formation of identical twins. If the cells from zygote result in the production of two girls, they will look identical to each other. They will be of the same gender and will be exactly same in the phenotype. 
    Thus, the correct answer is option A. 
  • Question 8
    1 / -0
    Sertoli cells are found in
    Solution
    • The Sertoli cells are located in the seminiferous tubule of the testis. 
    • FSH stimulates both the production of androgen-binding protein (ABP) by Sertoli cells and is critical for the initiation of spermatogenesis. 
    • These cells also provide nutrition to the developing sperm cells and are regulated by FSH.
    Thus, the correct answer is option D. 
  • Question 9
    1 / -0
    The mammary glands in female develop in response to the ........... after puberty.
    Solution
    Estrogen also referred to as female sex hormone, is produced mainly in the ovaries. At the onset of puberty, estrogen plays a role in the development of secondary sexual characteristics. It also regulates the menstrual cycle, controlling the growth of the uterine lining during the first part of the cycle. Thus the correct answer is option C.
  • Question 10
    1 / -0
    Identify the correct match from the Columns I, II and III.
    IIIIII
    1. Interstitial cellsa. Cortex of ovaryi. Follicular fluid
    2. Sertoli cellsb. Ovarian follicleii. Progesterone
    3. Granulosa cellsc. Testisiii. Attachment of sperm bundle
    4. Cells of corpus luteumd. Seminiferous tubulesiv. Testosterone
    Solution
    1.  Interstitial cells are present in the testis. These cells secrete testosterone responsible for the development of secondary sexual characters in males.
    2. Sertoli cells are present in the seminiferous tubules. Thes cells attach sperm bundles and nurse them.
    3. Granulosa cells are present in the cortex of ovary. These cells secrete a follicular fluid that is involved in the maturation of follicles. 
    4. Cells of corpus luteum are formed from the ovarian follicle. These cells secrete progesterone.
    Thus the correct answer is option B.
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