| 1. | During pollination, this generative cell divides and gives rise to sperm cells.
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| 2. | These microbes damage sperm cells, leaving them unable to fertilize female gametes.
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| 3. | Most of them produce sperm cells that do not contain any plastids.
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| 4. | The mammalian sperm cell consists of a head, a midpiece and a tail.
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| 5. | As a result, the mice were able to produce sperm cells.
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| 6. | I highly doubt 3 million sperm cells are going to make you infertile.
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| 7. | How many million sperm cells is it that are produced by one ejaculation?
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| 8. | Johnson labeled the DNA in sperm cells with a temporary, nontoxic, fluorescent chemical.
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| 9. | The Y-chromosome sperm cells contain about 2 . 8 percent less genetic material.
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| 10. | Also, sperm cells with tail-tip swelling patterns generally have lower frequency of aneuploidy.
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