The cell A, in the given figure is:
Correct answer: B. Spermatogonium
- A. Gametophyte
- B. Spermatogonium
- C. Sperm
- D. Spermatocyte
- E. Spermatid
Explanation
In the process of spermatogenesis, spermatogonium is the diploid cell that divides mitotically to produce two daughter cells - one remains as spermatogonium for further division, and the other differentiates into primary spermatocyte. In the given figure, A is marked as spermatogonium, indicating that it is a diploid cell that will divide mitotically to produce more spermatogonia. Therefore, option B is the correct answer.
This question appeared on the NUMS 2019 (cancelled sitting) 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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