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Human Reproduction
Gametogenesis (Spermatogenesis vs Oogenesis)
1 question from 1 paper, each with its answer.
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- of Human Reproduction
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Concepts tested
- Comparative Gametogenesis
All Questions
2025 1 question
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Consider the following:
A. The reductive division for the human female gametogenesis starts earlier than that of the male gametogenesis.
B. The gap between the first meiotic division and the second meiotic division is much shorter for males compared to females.
C. The first polar body is associated with the formation of the primary oocyte.
D. Luteinizing Hormone (LH) surge leads to disintegration of the endometrium and onset of menstrual bleeding.
Choose the correct answer from the options given below:A and B are true: female meiosis starts in fetal life; gap between meiosis I and II spans years in females vs hours/days in males.
Oogenesis initiates embryonic life before birth, whereas spermatogenesis starts only at puberty (A is true). In females, meiosis I arrests in prophase I until ovulation decades later, so the interphase gap between meiosis I and II is dramatically prolonged compared to males (B is true). First polar body forms during secondary oocyte formation, and LH surge triggers ovulation, not endometrial breakdown.