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Human Reproduction Test - 61

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Human Reproduction Test - 61
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  • Question 1
    1 / -0
    Body of embryo is formed from
    Solution
    The blastocyst i.e., 32 celled stage, differentiates into an outer trophoblast and inner cell mass. The trophoblast helps in the implantation of the embryo in the uterus. The inner cell mass develops into the body of the embryo. Trophoblast may differentiate into trophectoderm and trophoendoderm. So the correct answer is B.
  • Question 2
    1 / -0
    Determinate cleavage is found in
    Solution
    Cleavage is the division of cells in an early embryo. It is of two types- Determinate and Indeterminate.
    Determinate cleavage shows the developmental fate of the cells being set early in the embryo development. Eggs of Annelids, Flatworms, Cnidaria, Nematodes.
    So the correct option is 'All the above.'
  • Question 3
    1 / -0
    Spermatogenesis and sperm differentiation are under the control of
    Solution
    FSH is responsible for the initiation of spermatogenesis and sperm differentiation. It binds with Sertoli cells and spermatogonia and induces proliferation of spermatogonia .
    So, the correct answer is 'FSH'.
  • Question 4
    1 / -0
    Supporting cells found in between spermatogonia are
    Solution
    Supporting cells also called as Sertoli cells present within the seminiferous tubules functions as a hemato-testicular barrier and the nourishment of the spermatozoa. 
    So the correct option is 'Sertoli cells.'
  • Question 5
    1 / -0
    Corpus luteum is
    Solution

    Correct Option: B

    Explanation:

    • The corpus luteum develops from the ruptured follicle after the ovulation takes place.
    • It is a temporary endocrine gland that produces progesterone.

    Hence, corpus luteum is endocrine.

  • Question 6
    1 / -0
    In centrolecithal eggs, the cleavage is
    Solution
    Meroblastic cleavage is seen in centrolecithal eggs in which yolk is located in the center of the egg.
    So the correct option is 'Meroblastic superficial.'
  • Question 7
    1 / -0
    Which accessory genital gland occurs only in male mammal?
    Solution
    • The prostate gland is the accessory genital gland that occurs only in the male mammal. It is unpaired. It is located below the urinary bladder. It secretes an alkaline fluid. This fluid is rich in bicarbonate ion that neutralizes the acids in the female reproductive tract. 
    • Cowper's gland is also an accessory genital gland but it occurs only in human males. 
    • Bartholin's glands are located on each side of the vaginal opening. They secrete fluid that helps lubricate the vagina. 
    • Pineal gland is situated in the middle of the human brain and is the major site of the body's melatonin production.
    Thus, the correct answer is 'Prostate gland'.
  • Question 8
    1 / -0
    Seminiferous tubules occur in
    Solution
    Seminiferous tubules occur in of testis of man. Each testis has about 250 compartments called testicular lobules, these compartments contain highly coiled tubules called seminiferous tubules. Seminiferous tubule is the functional unit of testes. In seiniferous tubules, sperms are produced. Each seminiferous tubule is lined on its inside by two types of cells called male germ cell (spermatogonia) and sertolli cells. Sertoli cells or nurse cell provide nutrition to the developing sperms. Head of developing sperms are embedded in the sertoli cells. The male germ cells undergo meiotic divisions finally leading to sperm formation.
  • Question 9
    1 / -0
    Bartholin's glands of female correspond to glands in male
    Solution
    Bartholin's glands are two pea sized compound racemose gland. They secrete mucous to lubricte the vagina. They are homologous to bulbourethral gland which is also known as cowper's gland.
    So, the correct answer is 'Cowper's gland'.
  • Question 10
    1 / -0
    A zygote is completely divided into two by a cleavage furrow. The cleavage type is
    Solution
    Complete division of an egg into blastomeres is called as 'Holoblastic.'
    So the correct option is 'Holoblastic.'
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