Researchers in Michigan found that sperm inject RNA as well as DNA into eggs at fertilization, which could explain why cloning, which does not involve sperm, is so difficult. | Harper's Magazine

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Researchers in Michigan found that sperm inject RNA as well as DNA into eggs at fertilization, which could explain why cloning, which does not involve sperm, is so difficult.

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Researchers in Michigan found that sperm inject RNA as well as DNA into eggs at fertilization, which could explain why cloning, which does not involve sperm, is so difficult.

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