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21 Jan Sperm samples will be collected before and after the men quit. The researchers assessed the ability of sperm to pass these diagnostic tests while MaryLou Bodziak and Roxanne Mroz, UB research associates, along with.

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Description:You may be unlucky enough to be severely allergic to your partner's sperm. Fertil Steril 92 5: He may have developed antibodies that attack his own sperm. However, careful experimental examinations of all these possibilities with proper controls demonstrated that the measured responses to temperature are true thermotactic responses and that they are not a reflection of any other temperature-sensitive process, including rheotaxis and chemotaxis. The tight clusters loosen after a few minutes, presumably because the sperm become desensitized or a chemical gradient becomes smaller. The fluid mechanics of the male gamete has recently been reviewed in detail Gaffney et al. Sperm solve this problem by producing a bending wave, which propagates along the flagellum Fig.

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