Question

Which of the following describes the major difference between the production of egg cells (oogenesis) and the production of sperm cells (spermatogenesis)?

• A. During spermatogenesis, 4 diploid cells are produced, but during oogenesis, 4 haploid cells are produced.
• B. During spermatogenesis. 3 polar bodies are produced along with one sperm cell, while oogenesis produces 4 egg cells
• C. During spermatogenesis 4 diploid sperm cells are produced, and during oogenesis 4 diploid egg cells are produced.
• D. During spermatogenesis, 4 haploid sperm cells are produced while oogenesis produces 1 haploid egg cell and 3 polar bodies.
• E. During spermatogenesis. 4 haploid sperm cells are produced while oogenesis produces 4 haploid egg cells.

Answer 1

The correct option is D During spermatogenesis, 4 haploid sperm cells are produced while oogenesis produces 1 haploid egg cell and 3 polar bodies.

In spermatogenesis, primary spermatocyte undergoes first meiotic division to form two haploid secondary spermatocytes. The secondary spermatocytes with the help of second meiotic division produces four haploid sperms.

In oogenesis, diploid primary oocyte develops by mitotic division of oogonium. It undergoes the first meiotic division and give rise to a haploid secondary oocyte and a small polar body. Secondary oocyte by meisis II forms a secondary polar body and a ootid and polar body forms two haploid polar body.