| 21. | ADAM7 is important for the maturation of sperm cells in mammals.
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| 22. | With the Lewinsky dress, the first task would be to look for sperm cells.
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| 23. | Sperm cells in algal and many plant gametophytes are produced in male mitotic division.
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| 24. | Some algae and fungi produce non-motile sperm cells, called spermatia.
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| 25. | Sperm cells also have decreased forward motility, but normal morphology.
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| 26. | I used a surrogate mother and my own sperm cells.
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| 27. | His investigations into reproduction focused on studying the shape and structure of sperm cells.
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| 28. | Of this, around 1 % by volume is sperm cells.
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| 29. | When two eggs are independently fertilized by two different sperm cells, fraternal twins result.
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| 30. | He also found for the first time the sperm cells of animals and humans.
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