Predict what would happen if oogenesis during fetal development finished meiosis I before puberty? A polar body would form prior to follicular development. Nothing would happen. The number of eggs in the ovary prior to puberty would increase. The number of eggs in the ovary prior to puberty would decrease.
Added by Donald W.
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Meiosis I is the first division in this process, reducing the chromosome number by half. Normally, meiosis I is arrested in prophase I during fetal development and only completes after puberty when the egg is ovulated. Show more…
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B. Males produce sperm , whereas with oogenesis a woman's ovary releases only per month. C. By birth all oogonia transform into and go as far as meiosis I. D. Egg development resumes in adolescence, when monthly cohorts of oocytes are recruited to complete to form a secondary oocyte and a much smaller first polar body, which ultimately disintegrates. E. The secondary oocyte proceeds to and then arrests until after ovulation.
Suman K.
Oocytes pause during Meiosis I, then every month or so one will complete it, forming a secondary oocyte. After fertilization, the secondary oocyte will begin Meiosis II but not complete it until after fertilization. The oocyte will then finish Meiosis II immediately.
Sri K.
During oogenesis, the first haploid cell with abundant cytoplasm that is produced is: A. Secondary oocyte B. Secondary polar body C. Primary oocyte D. First polar body 2. Which of the following statements about blocks to polyspermy is false? A. The slow block creates a physical barrier that sperm cannot penetrate B. The fast block causes release of acrosomal enzymes C. The fast block results from a change in the electrical charge difference across the plasma membrane of the egg D. Blocks to polyspermy prevent more than one sperm from entering an egg 3. Which statement about human oocytes is true? A. Oocytes are produced by a woman throughout adoles B. Oocytes produced by a woman are stored in the oviducts C. Oogenesis produces four equally functional haploid cells per meiotic event D. By birth, the human female infant has produced a lifetime supply of oocytes 4. Spermatogenesis and ogeneis differ in that: A. Spermatogenesis produces many gametes, whereas oogenesis produces relatively few, well-provisioned gametes B. Permatocytes remain in prophase of the first meiotic division longer than oocytes C. Spermatogenesis begins before birth in humans, whereas oogenesis does not start until the onset of puberty D. Spermatogenesis produces gametes with greater stores of raw materials than those produced by oogenesis 5. in oogenesis the first meiotic division produces A. an ovum and the second polar body B. an ootid and the second polar body C. a secondary oocyte and the first polar body D. a primary oocyte
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