一些人还祭出了优生学的幽灵。
消极优生学的范例是试图破坏一种对人体有害的隐性基因。
An example of negative eugenics would be the attempt to eradicate a harmful recessive gene.
对近亲婚配及后代遗传效应的研究是人类遗传学和优生学的研究内容之一。
Research on consanguineous mating and genetic effect on generation is one of the research contents of human genetics and eugenics.
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