| 41. | The sperm cells are carried to their destination in the tip of the pollen tube.
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| 42. | In terms of cell cycle, ova or sperm cells.
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| 43. | Advancing age, it's explained, increases the risk of sperm cell mutations and, consequently, defective babies.
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| 44. | Furthermore, GLUT8 appears to play an important role in the energy metabolism of sperm cells.
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| 45. | The sperm cells are the only flagellated cells in the life cycle of these plants.
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| 46. | Once that chemical was in the sperm cells, they would glow blue under a laser light.
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| 47. | The machine measures how many sperm cells are present by shining a light through the semen.
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| 48. | Their embryos, sperm cells and eggs are sensitive.
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| 49. | The body stores creatine in muscle, nerve and sperm cells and provides muscle cells with energy.
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| 50. | But it is active in egg and sperm cells, where it maintains the telomeres at youthful length.
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