[Campbell Biology P.1076] Which of the following statements most accurately describes a key d... | Practice Question

Which of the following statements most accurately describes a key difference between spermatogenesis and oogenesis in humans, according to the provided text?

  • A: Spermatogenesis is a prolonged process, while oogenesis is continuous.
  • B: Spermatogenesis produces four mature gametes from meiosis, whereas oogenesis produces one egg and smaller polar bodies.
  • C: Mitotic divisions for spermatogenesis are complete before birth, but for oogenesis, they occur throughout adolescence and adulthood.
  • D: Cytokinesis is equal in oogenesis, leading to four functional eggs, unlike spermatogenesis.

Explanation

The text explicitly states: 'In spermatogenesis, the four products of meiosis develop into mature gametes. In oogenesis, cytokinesis during meiosis is unequal, with almost all the cytoplasm segregated to a single daughter cell. This large cell is destined to become the egg; the other products of meiosis, smaller cells known as polar bodies, degenerate.' This directly supports option B as the accurate description of the difference in meiotic products.