| 单词 | tetrahymena |
| 例句 | Beginning with research in the 1980s with a single-celled aquatic creature called a tetrahymena, Dr. Allis found that histone proteins were more than mere wrappers or spools, as long thought. David Allis, researcher who explored ‘on-off’ switch in genes, dies at 71 2023-01-21T05:00:00Z |
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