这个词是什么意思？
Directed modification of the gene complement of a living organism by such techniques as altering the DNA, substituting genetic material by means of a virus, transplanting whole nuclei, transplanting cell hybrids, etc.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D005818 · MeSH 2026。
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