The first cells produced by the repeated cell division of germinal epithelium of testis are:
Correct answer: B. Spermatogonia
- A. Interstitial cells
- B. Spermatogonia
- C. Secondary spermatocytes
- D. Spermatids
Explanation
Option [A] interstitial cells are present between the seminiferous tubules of testis and secrete testosterone hormone.Option [B] Each testis consists of seminiferous tubules in which repeated division by cells of the germinal epithelium produce spermatogonia.These increase in size and differentiate into primary spermatocytes.So option B IS RIGHT.Option [C] secondary spermatocytes are formed by meiotic division[ meiosis 1] of primary spermatocytes.Option [D] spermatids are formed by meiosis [meiosis 2] of secondary spermatocytes'
This question appeared on the UHS MDCAT 2010 paper, which you can sit online with every answer explained.
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The human reproductive system includes the male and female organs that produce gametes, secrete sex hormones and support fertilization and development. Questions cover the testes, ovaries, reproductive ducts, menstrual and ovarian cycles, ovulation, fertilization, implantation, placenta formation and the roles of FSH, LH, oestrogen, progesterone and testosterone.
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