Sentences with phrase «make viable sperm»
«But most men with fertility problems don't make viable sperm at all or make too little for even assisted fertilization to work,» he added.
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«Right before ejaculation, your partner might have released some fluid called «pre-ejaculation,» which may have active and viable sperm that can make you pregnant.»
To make sure that the eggs were viable, the team artificially inseminated these fluorescently labeled eggs with sperm.