DRAW IT In human spermatogenesis, mitosis of a stem cell gives rise to one cell that remains a stem cell and one cell that becomes a spermatogonium. (a) Draw four rounds of mitosis for a stem cell, and label the daughter cells. (b) For one spermatogonium. draw the cells it would produce from one round of mitosis followed by meiosis. Label the cells, and label mitosis and meiosis. (c) Explain what would happen it stem cells divided like spermatogonia.
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- During spermatogenesis, which of the following options describes when cytokinesis would occur? Following anaphase I Following metaphase II Following telophase I Following telophase IIarrow_forwardIf one follows 32 primary oocytes in an animal through their various stages of oogenesis, how many secondary oocytes would be formed? How many first polar bodies would be formed? How many ootids would be formed? If one follows 32 primary spermatocytes in an animal through their various stages of spermatogenesis, how many secondary spermatocytes would be formed? How many spermatids would be formed? Secondary oocytes First polar bodies Ootids Secondary Spermatocytes Spermatidsarrow_forwardIn a possible future scenario, male fertility drops to zero, but, luckily, scientists develop a way for women to pro-duce babies by virgin birth. Meiocytes are converted di-rectly (without undergoing meiosis) into zygotes, which implant in the usual way. What would be the short- andlong-term effects in such a society?arrow_forward
- Given that a diploid cell will undergo meiosis and give rise to gametes (egg or sperm cells), where in the body would you expect this cell to be located?arrow_forwardIf two sperm cells were able to fertilize the same oocyte, how many chromosomes would the zygote have?arrow_forwardIn humans, gametogenesis in both sexes relies on meiosis. However, spermatogenesis produces four gametes while oogenesis produces only one. Explain why this is so, including the specific structures or processes involved.arrow_forward
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