| 31. | In males, testes are often small, but spermatogenesis is thought to be normal.
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| 32. | They control spermatogenesis and the ovarian cycle, parturition, lactation, and maternal behaviour.
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| 33. | In 1879 Mathias Duval made studies of spermatogenesis in " Viviparus viviparus ")
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| 34. | This gene belongs to the RBMY gene family which includes candidate Y chromosome spermatogenesis genes.
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| 35. | Mutation and knockout studies of the mouse gene demonstrated an essential role in adult spermatogenesis.
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| 36. | Studies of the mouse and rat counterparts suggested a role of this protein in spermatogenesis.
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| 37. | It is well known that many epigenetic changes occur during spermatogenesis to create viable sperm.
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| 38. | Protamines are small, nuclear proteins that replace histones during the haploid stage in spermatogenesis.
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| 39. | :Spermatogenesis occurs only in Seminiferous tubules whose surgical removal leaves the man permanently sterile.
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| 40. | The classic hypothesis is that cooler temperature of the testes allows for more efficient fertile spermatogenesis.
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