Analysis of the DNA and proteins of a range of animals has revealed that sperm’s molecular toolkit arose in our single-celled ancestors, perhaps more than a billion years ago
Več na: https://www.newscientist.com/article/2505398-sperms-evolutionary-origins-go-back-before-multicellular-animals/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home
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